Home / 36,139.90-54,196.36-12,440.82

Finding the Fourth Proportional to 36,139.90, 54,196.36 and 12,440.82

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Solution

The fourth proportional to 36,139.90, 54,196.36 and 12,440.82 is: 18,656.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,139.90 : 54,196.36 = 12,440.82 : x
  2. Step 2: Convert to fraction form
    36,139.90/54,196.36 = 12,440.82/x
  3. Step 3: Cross multiply
    36,139.90x = 54,196.36 × 12,440.82
  4. Step 4: Simplify right side
    36,139.90x = 674,247,159.42
  5. Step 5: Solve for x
    x = 674,247,159.42/36,139.90
  6. Step 6: Final answer
    x = 18,656.59

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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.