Home / 28,008.32-38,621.76-25,187.36

Finding the Fourth Proportional to 28,008.32, 38,621.76 and 25,187.36

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Solution

The fourth proportional to 28,008.32, 38,621.76 and 25,187.36 is: 34,731.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008.32 : 38,621.76 = 25,187.36 : x
  2. Step 2: Convert to fraction form
    28,008.32/38,621.76 = 25,187.36/x
  3. Step 3: Cross multiply
    28,008.32x = 38,621.76 × 25,187.36
  4. Step 4: Simplify right side
    28,008.32x = 972,780,172.95
  5. Step 5: Solve for x
    x = 972,780,172.95/28,008.32
  6. Step 6: Final answer
    x = 34,731.83

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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.