Home / 25,443.06-35,008.20-20,888.97

Finding the Fourth Proportional to 25,443.06, 35,008.20 and 20,888.97

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Solution

The fourth proportional to 25,443.06, 35,008.20 and 20,888.97 is: 28,742.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,443.06 : 35,008.20 = 20,888.97 : x
  2. Step 2: Convert to fraction form
    25,443.06/35,008.20 = 20,888.97/x
  3. Step 3: Cross multiply
    25,443.06x = 35,008.20 × 20,888.97
  4. Step 4: Simplify right side
    25,443.06x = 731,285,239.55
  5. Step 5: Solve for x
    x = 731,285,239.55/25,443.06
  6. Step 6: Final answer
    x = 28,742.03

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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.