Home / 47,728.10-71,570.55-21,419.30

Finding the Fourth Proportional to 47,728.10, 71,570.55 and 21,419.30

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Solution

The fourth proportional to 47,728.10, 71,570.55 and 21,419.30 is: 32,119.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,728.10 : 71,570.55 = 21,419.30 : x
  2. Step 2: Convert to fraction form
    47,728.10/71,570.55 = 21,419.30/x
  3. Step 3: Cross multiply
    47,728.10x = 71,570.55 × 21,419.30
  4. Step 4: Simplify right side
    47,728.10x = 1,532,991,081.62
  5. Step 5: Solve for x
    x = 1,532,991,081.62/47,728.10
  6. Step 6: Final answer
    x = 32,119.26

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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.