Home / 29,089.92-40,142.88-16,515.36

Finding the Fourth Proportional to 29,089.92, 40,142.88 and 16,515.36

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Solution

The fourth proportional to 29,089.92, 40,142.88 and 16,515.36 is: 22,790.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,089.92 : 40,142.88 = 16,515.36 : x
  2. Step 2: Convert to fraction form
    29,089.92/40,142.88 = 16,515.36/x
  3. Step 3: Cross multiply
    29,089.92x = 40,142.88 × 16,515.36
  4. Step 4: Simplify right side
    29,089.92x = 662,974,114.64
  5. Step 5: Solve for x
    x = 662,974,114.64/29,089.92
  6. Step 6: Final answer
    x = 22,790.51

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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.