Home / 31,062.19-42,865.99-16,915.04

Finding the Fourth Proportional to 31,062.19, 42,865.99 and 16,915.04

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Solution

The fourth proportional to 31,062.19, 42,865.99 and 16,915.04 is: 23,342.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,062.19 : 42,865.99 = 16,915.04 : x
  2. Step 2: Convert to fraction form
    31,062.19/42,865.99 = 16,915.04/x
  3. Step 3: Cross multiply
    31,062.19x = 42,865.99 × 16,915.04
  4. Step 4: Simplify right side
    31,062.19x = 725,079,935.49
  5. Step 5: Solve for x
    x = 725,079,935.49/31,062.19
  6. Step 6: Final answer
    x = 23,342.85

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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.