Home / 21,887.42-32,847.55-15,561.50

Finding the Fourth Proportional to 21,887.42, 32,847.55 and 15,561.50

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Solution

The fourth proportional to 21,887.42, 32,847.55 and 15,561.50 is: 23,353.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,887.42 : 32,847.55 = 15,561.50 : x
  2. Step 2: Convert to fraction form
    21,887.42/32,847.55 = 15,561.50/x
  3. Step 3: Cross multiply
    21,887.42x = 32,847.55 × 15,561.50
  4. Step 4: Simplify right side
    21,887.42x = 511,156,946.18
  5. Step 5: Solve for x
    x = 511,156,946.18/21,887.42
  6. Step 6: Final answer
    x = 23,353.92

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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.