Home / 31,039.91-42,834.26-16,892.45

Finding the Fourth Proportional to 31,039.91, 42,834.26 and 16,892.45

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Solution

The fourth proportional to 31,039.91, 42,834.26 and 16,892.45 is: 23,311.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,039.91 : 42,834.26 = 16,892.45 : x
  2. Step 2: Convert to fraction form
    31,039.91/42,834.26 = 16,892.45/x
  3. Step 3: Cross multiply
    31,039.91x = 42,834.26 × 16,892.45
  4. Step 4: Simplify right side
    31,039.91x = 723,575,510.87
  5. Step 5: Solve for x
    x = 723,575,510.87/31,039.91
  6. Step 6: Final answer
    x = 23,311.13

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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.