Home / 34,342.48-47,396.61-20,921.62

Finding the Fourth Proportional to 34,342.48, 47,396.61 and 20,921.62

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Solution

The fourth proportional to 34,342.48, 47,396.61 and 20,921.62 is: 28,874.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,342.48 : 47,396.61 = 20,921.62 : x
  2. Step 2: Convert to fraction form
    34,342.48/47,396.61 = 20,921.62/x
  3. Step 3: Cross multiply
    34,342.48x = 47,396.61 × 20,921.62
  4. Step 4: Simplify right side
    34,342.48x = 991,613,863.71
  5. Step 5: Solve for x
    x = 991,613,863.71/34,342.48
  6. Step 6: Final answer
    x = 28,874.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.