Home / 31,062.53-42,866.34-16,915.43

Finding the Fourth Proportional to 31,062.53, 42,866.34 and 16,915.43

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Solution

The fourth proportional to 31,062.53, 42,866.34 and 16,915.43 is: 23,343.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,062.53 : 42,866.34 = 16,915.43 : x
  2. Step 2: Convert to fraction form
    31,062.53/42,866.34 = 16,915.43/x
  3. Step 3: Cross multiply
    31,062.53x = 42,866.34 × 16,915.43
  4. Step 4: Simplify right side
    31,062.53x = 725,102,573.63
  5. Step 5: Solve for x
    x = 725,102,573.63/31,062.53
  6. Step 6: Final answer
    x = 23,343.32

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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.