Home / 21,740.90-29,995.25-15,024.11

Finding the Fourth Proportional to 21,740.90, 29,995.25 and 15,024.11

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Solution

The fourth proportional to 21,740.90, 29,995.25 and 15,024.11 is: 20,728.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,740.90 : 29,995.25 = 15,024.11 : x
  2. Step 2: Convert to fraction form
    21,740.90/29,995.25 = 15,024.11/x
  3. Step 3: Cross multiply
    21,740.90x = 29,995.25 × 15,024.11
  4. Step 4: Simplify right side
    21,740.90x = 450,651,710.38
  5. Step 5: Solve for x
    x = 450,651,710.38/21,740.90
  6. Step 6: Final answer
    x = 20,728.30

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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.