Home / 21,575.28-29,763.96-15,597.48

Finding the Fourth Proportional to 21,575.28, 29,763.96 and 15,597.48

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Solution

The fourth proportional to 21,575.28, 29,763.96 and 15,597.48 is: 21,517.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,575.28 : 29,763.96 = 15,597.48 : x
  2. Step 2: Convert to fraction form
    21,575.28/29,763.96 = 15,597.48/x
  3. Step 3: Cross multiply
    21,575.28x = 29,763.96 × 15,597.48
  4. Step 4: Simplify right side
    21,575.28x = 464,242,770.82
  5. Step 5: Solve for x
    x = 464,242,770.82/21,575.28
  6. Step 6: Final answer
    x = 21,517.35

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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.