Home / 40,421.15-60,631.84-14,125.89

Finding the Fourth Proportional to 40,421.15, 60,631.84 and 14,125.89

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Solution

The fourth proportional to 40,421.15, 60,631.84 and 14,125.89 is: 21,188.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,421.15 : 60,631.84 = 14,125.89 : x
  2. Step 2: Convert to fraction form
    40,421.15/60,631.84 = 14,125.89/x
  3. Step 3: Cross multiply
    40,421.15x = 60,631.84 × 14,125.89
  4. Step 4: Simplify right side
    40,421.15x = 856,478,947.36
  5. Step 5: Solve for x
    x = 856,478,947.36/40,421.15
  6. Step 6: Final answer
    x = 21,188.88

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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.