Home / 25,285.38-34,883.58-15,718.47

Finding the Fourth Proportional to 25,285.38, 34,883.58 and 15,718.47

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Solution

The fourth proportional to 25,285.38, 34,883.58 and 15,718.47 is: 21,685.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,285.38 : 34,883.58 = 15,718.47 : x
  2. Step 2: Convert to fraction form
    25,285.38/34,883.58 = 15,718.47/x
  3. Step 3: Cross multiply
    25,285.38x = 34,883.58 × 15,718.47
  4. Step 4: Simplify right side
    25,285.38x = 548,316,505.72
  5. Step 5: Solve for x
    x = 548,316,505.72/25,285.38
  6. Step 6: Final answer
    x = 21,685.12

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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.