Home / 27,989.58-38,625.50-15,414.32

Finding the Fourth Proportional to 27,989.58, 38,625.50 and 15,414.32

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Solution

The fourth proportional to 27,989.58, 38,625.50 and 15,414.32 is: 21,271.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,989.58 : 38,625.50 = 15,414.32 : x
  2. Step 2: Convert to fraction form
    27,989.58/38,625.50 = 15,414.32/x
  3. Step 3: Cross multiply
    27,989.58x = 38,625.50 × 15,414.32
  4. Step 4: Simplify right side
    27,989.58x = 595,385,817.16
  5. Step 5: Solve for x
    x = 595,385,817.16/27,989.58
  6. Step 6: Final answer
    x = 21,271.70

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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.