Home / 36,117.92-54,178.32-12,740.96

Finding the Fourth Proportional to 36,117.92, 54,178.32 and 12,740.96

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Solution

The fourth proportional to 36,117.92, 54,178.32 and 12,740.96 is: 19,111.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,117.92 : 54,178.32 = 12,740.96 : x
  2. Step 2: Convert to fraction form
    36,117.92/54,178.32 = 12,740.96/x
  3. Step 3: Cross multiply
    36,117.92x = 54,178.32 × 12,740.96
  4. Step 4: Simplify right side
    36,117.92x = 690,283,807.99
  5. Step 5: Solve for x
    x = 690,283,807.99/36,117.92
  6. Step 6: Final answer
    x = 19,111.95

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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.