Home / 31,503.25-47,254.98-21,612.55

Finding the Fourth Proportional to 31,503.25, 47,254.98 and 21,612.55

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Solution

The fourth proportional to 31,503.25, 47,254.98 and 21,612.55 is: 32,418.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,503.25 : 47,254.98 = 21,612.55 : x
  2. Step 2: Convert to fraction form
    31,503.25/47,254.98 = 21,612.55/x
  3. Step 3: Cross multiply
    31,503.25x = 47,254.98 × 21,612.55
  4. Step 4: Simplify right side
    31,503.25x = 1,021,300,618.00
  5. Step 5: Solve for x
    x = 1,021,300,618.00/31,503.25
  6. Step 6: Final answer
    x = 32,418.90

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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.