Home / 31,920.67-47,901.66-14,389.44

Finding the Fourth Proportional to 31,920.67, 47,901.66 and 14,389.44

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Solution

The fourth proportional to 31,920.67, 47,901.66 and 14,389.44 is: 21,593.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,920.67 : 47,901.66 = 14,389.44 : x
  2. Step 2: Convert to fraction form
    31,920.67/47,901.66 = 14,389.44/x
  3. Step 3: Cross multiply
    31,920.67x = 47,901.66 × 14,389.44
  4. Step 4: Simplify right side
    31,920.67x = 689,278,062.47
  5. Step 5: Solve for x
    x = 689,278,062.47/31,920.67
  6. Step 6: Final answer
    x = 21,593.47

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1.5x scale

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.