Home / 31,501.86-47,272.57-12,781.97

Finding the Fourth Proportional to 31,501.86, 47,272.57 and 12,781.97

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Solution

The fourth proportional to 31,501.86, 47,272.57 and 12,781.97 is: 19,180.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,501.86 : 47,272.57 = 12,781.97 : x
  2. Step 2: Convert to fraction form
    31,501.86/47,272.57 = 12,781.97/x
  3. Step 3: Cross multiply
    31,501.86x = 47,272.57 × 12,781.97
  4. Step 4: Simplify right side
    31,501.86x = 604,236,571.56
  5. Step 5: Solve for x
    x = 604,236,571.56/31,501.86
  6. Step 6: Final answer
    x = 19,180.98

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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.