Home / 25,108.08-34,649.52-13,778.70

Finding the Fourth Proportional to 25,108.08, 34,649.52 and 13,778.70

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Solution

The fourth proportional to 25,108.08, 34,649.52 and 13,778.70 is: 19,014.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,108.08 : 34,649.52 = 13,778.70 : x
  2. Step 2: Convert to fraction form
    25,108.08/34,649.52 = 13,778.70/x
  3. Step 3: Cross multiply
    25,108.08x = 34,649.52 × 13,778.70
  4. Step 4: Simplify right side
    25,108.08x = 477,425,341.22
  5. Step 5: Solve for x
    x = 477,425,341.22/25,108.08
  6. Step 6: Final answer
    x = 19,014.81

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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.