Home / 28,391.22-39,177.99-17,061.20

Finding the Fourth Proportional to 28,391.22, 39,177.99 and 17,061.20

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Solution

The fourth proportional to 28,391.22, 39,177.99 and 17,061.20 is: 23,543.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,391.22 : 39,177.99 = 17,061.20 : x
  2. Step 2: Convert to fraction form
    28,391.22/39,177.99 = 17,061.20/x
  3. Step 3: Cross multiply
    28,391.22x = 39,177.99 × 17,061.20
  4. Step 4: Simplify right side
    28,391.22x = 668,423,327.10
  5. Step 5: Solve for x
    x = 668,423,327.10/28,391.22
  6. Step 6: Final answer
    x = 23,543.31

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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.