Home / 36,129.18-54,180.29-12,430.10

Finding the Fourth Proportional to 36,129.18, 54,180.29 and 12,430.10

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Solution

The fourth proportional to 36,129.18, 54,180.29 and 12,430.10 is: 18,640.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,129.18 : 54,180.29 = 12,430.10 : x
  2. Step 2: Convert to fraction form
    36,129.18/54,180.29 = 12,430.10/x
  3. Step 3: Cross multiply
    36,129.18x = 54,180.29 × 12,430.10
  4. Step 4: Simplify right side
    36,129.18x = 673,466,151.83
  5. Step 5: Solve for x
    x = 673,466,151.83/36,129.18
  6. Step 6: Final answer
    x = 18,640.50

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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.