Home / 36,130.92-54,182.93-12,431.85

Finding the Fourth Proportional to 36,130.92, 54,182.93 and 12,431.85

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Solution

The fourth proportional to 36,130.92, 54,182.93 and 12,431.85 is: 18,643.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,130.92 : 54,182.93 = 12,431.85 : x
  2. Step 2: Convert to fraction form
    36,130.92/54,182.93 = 12,431.85/x
  3. Step 3: Cross multiply
    36,130.92x = 54,182.93 × 12,431.85
  4. Step 4: Simplify right side
    36,130.92x = 673,593,996.16
  5. Step 5: Solve for x
    x = 673,593,996.16/36,130.92
  6. Step 6: Final answer
    x = 18,643.15

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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.