Home / 23,030.61-31,780.13-13,472.61

Finding the Fourth Proportional to 23,030.61, 31,780.13 and 13,472.61

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Solution

The fourth proportional to 23,030.61, 31,780.13 and 13,472.61 is: 18,590.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,030.61 : 31,780.13 = 13,472.61 : x
  2. Step 2: Convert to fraction form
    23,030.61/31,780.13 = 13,472.61/x
  3. Step 3: Cross multiply
    23,030.61x = 31,780.13 × 13,472.61
  4. Step 4: Simplify right side
    23,030.61x = 428,161,229.88
  5. Step 5: Solve for x
    x = 428,161,229.88/23,030.61
  6. Step 6: Final answer
    x = 18,590.96

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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.