Home / 20,925-31,385.19-6,134.07

Finding the Fourth Proportional to 20,925, 31,385.19 and 6,134.07

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Solution

The fourth proportional to 20,925, 31,385.19 and 6,134.07 is: 9,200.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,925 : 31,385.19 = 6,134.07 : x
  2. Step 2: Convert to fraction form
    20,925/31,385.19 = 6,134.07/x
  3. Step 3: Cross multiply
    20,925x = 31,385.19 × 6,134.07
  4. Step 4: Simplify right side
    20,925x = 192,518,952.42
  5. Step 5: Solve for x
    x = 192,518,952.42/20,925
  6. Step 6: Final answer
    x = 9,200.43

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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.