Home / 21,230.38-29,327.90-17,009.47

Finding the Fourth Proportional to 21,230.38, 29,327.90 and 17,009.47

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Solution

The fourth proportional to 21,230.38, 29,327.90 and 17,009.47 is: 23,497.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,230.38 : 29,327.90 = 17,009.47 : x
  2. Step 2: Convert to fraction form
    21,230.38/29,327.90 = 17,009.47/x
  3. Step 3: Cross multiply
    21,230.38x = 29,327.90 × 17,009.47
  4. Step 4: Simplify right side
    21,230.38x = 498,851,803.53
  5. Step 5: Solve for x
    x = 498,851,803.53/21,230.38
  6. Step 6: Final answer
    x = 23,497.08

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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.