Home / 25,008.98-34,512.40-13,678.28

Finding the Fourth Proportional to 25,008.98, 34,512.40 and 13,678.28

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Solution

The fourth proportional to 25,008.98, 34,512.40 and 13,678.28 is: 18,876.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,008.98 : 34,512.40 = 13,678.28 : x
  2. Step 2: Convert to fraction form
    25,008.98/34,512.40 = 13,678.28/x
  3. Step 3: Cross multiply
    25,008.98x = 34,512.40 × 13,678.28
  4. Step 4: Simplify right side
    25,008.98x = 472,070,270.67
  5. Step 5: Solve for x
    x = 472,070,270.67/25,008.98
  6. Step 6: Final answer
    x = 18,876.03

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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.