Home / 20,567.12-28,382.51-11,617.52

Finding the Fourth Proportional to 20,567.12, 28,382.51 and 11,617.52

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Solution

The fourth proportional to 20,567.12, 28,382.51 and 11,617.52 is: 16,032.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,567.12 : 28,382.51 = 11,617.52 : x
  2. Step 2: Convert to fraction form
    20,567.12/28,382.51 = 11,617.52/x
  3. Step 3: Cross multiply
    20,567.12x = 28,382.51 × 11,617.52
  4. Step 4: Simplify right side
    20,567.12x = 329,734,319.49
  5. Step 5: Solve for x
    x = 329,734,319.49/20,567.12
  6. Step 6: Final answer
    x = 16,032.11

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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.