Home / 27,902.60-38,505.86-15,155.90

Finding the Fourth Proportional to 27,902.60, 38,505.86 and 15,155.90

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Solution

The fourth proportional to 27,902.60, 38,505.86 and 15,155.90 is: 20,915.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,902.60 : 38,505.86 = 15,155.90 : x
  2. Step 2: Convert to fraction form
    27,902.60/38,505.86 = 15,155.90/x
  3. Step 3: Cross multiply
    27,902.60x = 38,505.86 × 15,155.90
  4. Step 4: Simplify right side
    27,902.60x = 583,590,695.27
  5. Step 5: Solve for x
    x = 583,590,695.27/27,902.60
  6. Step 6: Final answer
    x = 20,915.28

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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.