Home / 31,612.81-47,426.27-11,891.53

Finding the Fourth Proportional to 31,612.81, 47,426.27 and 11,891.53

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Solution

The fourth proportional to 31,612.81, 47,426.27 and 11,891.53 is: 17,839.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,612.81 : 47,426.27 = 11,891.53 : x
  2. Step 2: Convert to fraction form
    31,612.81/47,426.27 = 11,891.53/x
  3. Step 3: Cross multiply
    31,612.81x = 47,426.27 × 11,891.53
  4. Step 4: Simplify right side
    31,612.81x = 563,970,912.49
  5. Step 5: Solve for x
    x = 563,970,912.49/31,612.81
  6. Step 6: Final answer
    x = 17,839.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.