Home / 27,998.28-38,637.56-15,423.04

Finding the Fourth Proportional to 27,998.28, 38,637.56 and 15,423.04

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Solution

The fourth proportional to 27,998.28, 38,637.56 and 15,423.04 is: 21,283.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,998.28 : 38,637.56 = 15,423.04 : x
  2. Step 2: Convert to fraction form
    27,998.28/38,637.56 = 15,423.04/x
  3. Step 3: Cross multiply
    27,998.28x = 38,637.56 × 15,423.04
  4. Step 4: Simplify right side
    27,998.28x = 595,908,633.38
  5. Step 5: Solve for x
    x = 595,908,633.38/27,998.28
  6. Step 6: Final answer
    x = 21,283.76

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Half scale
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Double scale
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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.