Home / 21,329.29-29,442.45-18,333.10

Finding the Fourth Proportional to 21,329.29, 29,442.45 and 18,333.10

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Solution

The fourth proportional to 21,329.29, 29,442.45 and 18,333.10 is: 25,306.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,329.29 : 29,442.45 = 18,333.10 : x
  2. Step 2: Convert to fraction form
    21,329.29/29,442.45 = 18,333.10/x
  3. Step 3: Cross multiply
    21,329.29x = 29,442.45 × 18,333.10
  4. Step 4: Simplify right side
    21,329.29x = 539,771,380.10
  5. Step 5: Solve for x
    x = 539,771,380.10/21,329.29
  6. Step 6: Final answer
    x = 25,306.58

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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.