Home / 25,890.28-38,778.48-21,397.03

Finding the Fourth Proportional to 25,890.28, 38,778.48 and 21,397.03

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Solution

The fourth proportional to 25,890.28, 38,778.48 and 21,397.03 is: 32,048.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,890.28 : 38,778.48 = 21,397.03 : x
  2. Step 2: Convert to fraction form
    25,890.28/38,778.48 = 21,397.03/x
  3. Step 3: Cross multiply
    25,890.28x = 38,778.48 × 21,397.03
  4. Step 4: Simplify right side
    25,890.28x = 829,744,202.97
  5. Step 5: Solve for x
    x = 829,744,202.97/25,890.28
  6. Step 6: Final answer
    x = 32,048.49

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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.