Home / 27,998.48-38,636.15-15,423.23

Finding the Fourth Proportional to 27,998.48, 38,636.15 and 15,423.23

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Solution

The fourth proportional to 27,998.48, 38,636.15 and 15,423.23 is: 21,283.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,998.48 : 38,636.15 = 15,423.23 : x
  2. Step 2: Convert to fraction form
    27,998.48/38,636.15 = 15,423.23/x
  3. Step 3: Cross multiply
    27,998.48x = 38,636.15 × 15,423.23
  4. Step 4: Simplify right side
    27,998.48x = 595,894,247.24
  5. Step 5: Solve for x
    x = 595,894,247.24/27,998.48
  6. Step 6: Final answer
    x = 21,283.09

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.