Home / 27,731.12-38,270.32-16,407.25

Finding the Fourth Proportional to 27,731.12, 38,270.32 and 16,407.25

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Solution

The fourth proportional to 27,731.12, 38,270.32 and 16,407.25 is: 22,642.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,731.12 : 38,270.32 = 16,407.25 : x
  2. Step 2: Convert to fraction form
    27,731.12/38,270.32 = 16,407.25/x
  3. Step 3: Cross multiply
    27,731.12x = 38,270.32 × 16,407.25
  4. Step 4: Simplify right side
    27,731.12x = 627,910,571.13
  5. Step 5: Solve for x
    x = 627,910,571.13/27,731.12
  6. Step 6: Final answer
    x = 22,642.82

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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.