Home / 31,411.47-47,119.52-11,690.04

Finding the Fourth Proportional to 31,411.47, 47,119.52 and 11,690.04

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Solution

The fourth proportional to 31,411.47, 47,119.52 and 11,690.04 is: 17,535.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,411.47 : 47,119.52 = 11,690.04 : x
  2. Step 2: Convert to fraction form
    31,411.47/47,119.52 = 11,690.04/x
  3. Step 3: Cross multiply
    31,411.47x = 47,119.52 × 11,690.04
  4. Step 4: Simplify right side
    31,411.47x = 550,829,073.58
  5. Step 5: Solve for x
    x = 550,829,073.58/31,411.47
  6. Step 6: Final answer
    x = 17,535.92

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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.