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Finding the Fourth Proportional to 25,340.80, 38,007.60 and 8,701.60

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Solution

The fourth proportional to 25,340.80, 38,007.60 and 8,701.60 is: 13,051.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,340.80 : 38,007.60 = 8,701.60 : x
  2. Step 2: Convert to fraction form
    25,340.80/38,007.60 = 8,701.60/x
  3. Step 3: Cross multiply
    25,340.80x = 38,007.60 × 8,701.60
  4. Step 4: Simplify right side
    25,340.80x = 330,726,932.16
  5. Step 5: Solve for x
    x = 330,726,932.16/25,340.80
  6. Step 6: Final answer
    x = 13,051.16

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1.5x scale

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.