Home / 42,147.81-63,221.72-23,418.89

Finding the Fourth Proportional to 42,147.81, 63,221.72 and 23,418.89

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Solution

The fourth proportional to 42,147.81, 63,221.72 and 23,418.89 is: 35,128.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,147.81 : 63,221.72 = 23,418.89 : x
  2. Step 2: Convert to fraction form
    42,147.81/63,221.72 = 23,418.89/x
  3. Step 3: Cross multiply
    42,147.81x = 63,221.72 × 23,418.89
  4. Step 4: Simplify right side
    42,147.81x = 1,480,582,073.09
  5. Step 5: Solve for x
    x = 1,480,582,073.09/42,147.81
  6. Step 6: Final answer
    x = 35,128.33

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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.