Home / 25,458.50-38,188.02-7,689.30

Finding the Fourth Proportional to 25,458.50, 38,188.02 and 7,689.30

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Solution

The fourth proportional to 25,458.50, 38,188.02 and 7,689.30 is: 11,534.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,458.50 : 38,188.02 = 7,689.30 : x
  2. Step 2: Convert to fraction form
    25,458.50/38,188.02 = 7,689.30/x
  3. Step 3: Cross multiply
    25,458.50x = 38,188.02 × 7,689.30
  4. Step 4: Simplify right side
    25,458.50x = 293,639,142.19
  5. Step 5: Solve for x
    x = 293,639,142.19/25,458.50
  6. Step 6: Final answer
    x = 11,534.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.