Home / 31,587.52-47,385.60-11,860.16

Finding the Fourth Proportional to 31,587.52, 47,385.60 and 11,860.16

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Solution

The fourth proportional to 31,587.52, 47,385.60 and 11,860.16 is: 17,791.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,587.52 : 47,385.60 = 11,860.16 : x
  2. Step 2: Convert to fraction form
    31,587.52/47,385.60 = 11,860.16/x
  3. Step 3: Cross multiply
    31,587.52x = 47,385.60 × 11,860.16
  4. Step 4: Simplify right side
    31,587.52x = 562,000,797.70
  5. Step 5: Solve for x
    x = 562,000,797.70/31,587.52
  6. Step 6: Final answer
    x = 17,791.86

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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.