Home / 31,951.29-47,864.07-30,130.68

Finding the Fourth Proportional to 31,951.29, 47,864.07 and 30,130.68

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Solution

The fourth proportional to 31,951.29, 47,864.07 and 30,130.68 is: 45,136.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,951.29 : 47,864.07 = 30,130.68 : x
  2. Step 2: Convert to fraction form
    31,951.29/47,864.07 = 30,130.68/x
  3. Step 3: Cross multiply
    31,951.29x = 47,864.07 × 30,130.68
  4. Step 4: Simplify right side
    31,951.29x = 1,442,176,976.67
  5. Step 5: Solve for x
    x = 1,442,176,976.67/31,951.29
  6. Step 6: Final answer
    x = 45,136.74

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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.