Home / 31,425.01-47,159.97-11,434.45

Finding the Fourth Proportional to 31,425.01, 47,159.97 and 11,434.45

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Solution

The fourth proportional to 31,425.01, 47,159.97 and 11,434.45 is: 17,159.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,425.01 : 47,159.97 = 11,434.45 : x
  2. Step 2: Convert to fraction form
    31,425.01/47,159.97 = 11,434.45/x
  3. Step 3: Cross multiply
    31,425.01x = 47,159.97 × 11,434.45
  4. Step 4: Simplify right side
    31,425.01x = 539,248,318.97
  5. Step 5: Solve for x
    x = 539,248,318.97/31,425.01
  6. Step 6: Final answer
    x = 17,159.85

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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.