Home / 21,618.50-32,385.79-14,200.45

Finding the Fourth Proportional to 21,618.50, 32,385.79 and 14,200.45

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Solution

The fourth proportional to 21,618.50, 32,385.79 and 14,200.45 is: 21,273.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,618.50 : 32,385.79 = 14,200.45 : x
  2. Step 2: Convert to fraction form
    21,618.50/32,385.79 = 14,200.45/x
  3. Step 3: Cross multiply
    21,618.50x = 32,385.79 × 14,200.45
  4. Step 4: Simplify right side
    21,618.50x = 459,892,791.61
  5. Step 5: Solve for x
    x = 459,892,791.61/21,618.50
  6. Step 6: Final answer
    x = 21,273.11

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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.