Home / 31,587.32-47,365.11-10,519.91

Finding the Fourth Proportional to 31,587.32, 47,365.11 and 10,519.91

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Solution

The fourth proportional to 31,587.32, 47,365.11 and 10,519.91 is: 15,774.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,587.32 : 47,365.11 = 10,519.91 : x
  2. Step 2: Convert to fraction form
    31,587.32/47,365.11 = 10,519.91/x
  3. Step 3: Cross multiply
    31,587.32x = 47,365.11 × 10,519.91
  4. Step 4: Simplify right side
    31,587.32x = 498,276,641.74
  5. Step 5: Solve for x
    x = 498,276,641.74/31,587.32
  6. Step 6: Final answer
    x = 15,774.58

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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.