Home / 42,613.92-63,921.06-11,449.08

Finding the Fourth Proportional to 42,613.92, 63,921.06 and 11,449.08

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Solution

The fourth proportional to 42,613.92, 63,921.06 and 11,449.08 is: 17,173.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,613.92 : 63,921.06 = 11,449.08 : x
  2. Step 2: Convert to fraction form
    42,613.92/63,921.06 = 11,449.08/x
  3. Step 3: Cross multiply
    42,613.92x = 63,921.06 × 11,449.08
  4. Step 4: Simplify right side
    42,613.92x = 731,837,329.62
  5. Step 5: Solve for x
    x = 731,837,329.62/42,613.92
  6. Step 6: Final answer
    x = 17,173.67

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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.