Home / 29,909.72-41,276.76-17,978.60

Finding the Fourth Proportional to 29,909.72, 41,276.76 and 17,978.60

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Solution

The fourth proportional to 29,909.72, 41,276.76 and 17,978.60 is: 24,811.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,909.72 : 41,276.76 = 17,978.60 : x
  2. Step 2: Convert to fraction form
    29,909.72/41,276.76 = 17,978.60/x
  3. Step 3: Cross multiply
    29,909.72x = 41,276.76 × 17,978.60
  4. Step 4: Simplify right side
    29,909.72x = 742,098,357.34
  5. Step 5: Solve for x
    x = 742,098,357.34/29,909.72
  6. Step 6: Final answer
    x = 24,811.28

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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.