Home / 31,501.61-47,272.19-12,781.73

Finding the Fourth Proportional to 31,501.61, 47,272.19 and 12,781.73

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Solution

The fourth proportional to 31,501.61, 47,272.19 and 12,781.73 is: 19,180.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,501.61 : 47,272.19 = 12,781.73 : x
  2. Step 2: Convert to fraction form
    31,501.61/47,272.19 = 12,781.73/x
  3. Step 3: Cross multiply
    31,501.61x = 47,272.19 × 12,781.73
  4. Step 4: Simplify right side
    31,501.61x = 604,220,164.68
  5. Step 5: Solve for x
    x = 604,220,164.68/31,501.61
  6. Step 6: Final answer
    x = 19,180.62

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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.