Home / 31,555.76-47,332.56-12,830.24

Finding the Fourth Proportional to 31,555.76, 47,332.56 and 12,830.24

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Solution

The fourth proportional to 31,555.76, 47,332.56 and 12,830.24 is: 19,244.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,555.76 : 47,332.56 = 12,830.24 : x
  2. Step 2: Convert to fraction form
    31,555.76/47,332.56 = 12,830.24/x
  3. Step 3: Cross multiply
    31,555.76x = 47,332.56 × 12,830.24
  4. Step 4: Simplify right side
    31,555.76x = 607,288,104.61
  5. Step 5: Solve for x
    x = 607,288,104.61/31,555.76
  6. Step 6: Final answer
    x = 19,244.92

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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.