Home / 31,370.60-47,031.26-21,479.96

Finding the Fourth Proportional to 31,370.60, 47,031.26 and 21,479.96

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Solution

The fourth proportional to 31,370.60, 47,031.26 and 21,479.96 is: 32,203.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,370.60 : 47,031.26 = 21,479.96 : x
  2. Step 2: Convert to fraction form
    31,370.60/47,031.26 = 21,479.96/x
  3. Step 3: Cross multiply
    31,370.60x = 47,031.26 × 21,479.96
  4. Step 4: Simplify right side
    31,370.60x = 1,010,229,583.55
  5. Step 5: Solve for x
    x = 1,010,229,583.55/31,370.60
  6. Step 6: Final answer
    x = 32,203.07

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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.