Home / 28,191.15-42,234.53-14,134.77

Finding the Fourth Proportional to 28,191.15, 42,234.53 and 14,134.77

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Solution

The fourth proportional to 28,191.15, 42,234.53 and 14,134.77 is: 21,175.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,191.15 : 42,234.53 = 14,134.77 : x
  2. Step 2: Convert to fraction form
    28,191.15/42,234.53 = 14,134.77/x
  3. Step 3: Cross multiply
    28,191.15x = 42,234.53 × 14,134.77
  4. Step 4: Simplify right side
    28,191.15x = 596,975,367.61
  5. Step 5: Solve for x
    x = 596,975,367.61/28,191.15
  6. Step 6: Final answer
    x = 21,175.98

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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.