Home / 21,576.28-29,765.34-15,598.48

Finding the Fourth Proportional to 21,576.28, 29,765.34 and 15,598.48

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Solution

The fourth proportional to 21,576.28, 29,765.34 and 15,598.48 is: 21,518.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,576.28 : 29,765.34 = 15,598.48 : x
  2. Step 2: Convert to fraction form
    21,576.28/29,765.34 = 15,598.48/x
  3. Step 3: Cross multiply
    21,576.28x = 29,765.34 × 15,598.48
  4. Step 4: Simplify right side
    21,576.28x = 464,294,060.68
  5. Step 5: Solve for x
    x = 464,294,060.68/21,576.28
  6. Step 6: Final answer
    x = 21,518.73

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Double scale
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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.