Home / 20,294.12-27,983.10-13,114.58

Finding the Fourth Proportional to 20,294.12, 27,983.10 and 13,114.58

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Solution

The fourth proportional to 20,294.12, 27,983.10 and 13,114.58 is: 18,083.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,294.12 : 27,983.10 = 13,114.58 : x
  2. Step 2: Convert to fraction form
    20,294.12/27,983.10 = 13,114.58/x
  3. Step 3: Cross multiply
    20,294.12x = 27,983.10 × 13,114.58
  4. Step 4: Simplify right side
    20,294.12x = 366,986,603.60
  5. Step 5: Solve for x
    x = 366,986,603.60/20,294.12
  6. Step 6: Final answer
    x = 18,083.40

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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.