Home / 25,108.88-34,649.08-13,778.12

Finding the Fourth Proportional to 25,108.88, 34,649.08 and 13,778.12

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Solution

The fourth proportional to 25,108.88, 34,649.08 and 13,778.12 is: 19,013.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,108.88 : 34,649.08 = 13,778.12 : x
  2. Step 2: Convert to fraction form
    25,108.88/34,649.08 = 13,778.12/x
  3. Step 3: Cross multiply
    25,108.88x = 34,649.08 × 13,778.12
  4. Step 4: Simplify right side
    25,108.88x = 477,399,182.13
  5. Step 5: Solve for x
    x = 477,399,182.13/25,108.88
  6. Step 6: Final answer
    x = 19,013.16

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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.