Home / 25,385.66-38,080.68-6,665.60

Finding the Fourth Proportional to 25,385.66, 38,080.68 and 6,665.60

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Solution

The fourth proportional to 25,385.66, 38,080.68 and 6,665.60 is: 9,998.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,385.66 : 38,080.68 = 6,665.60 : x
  2. Step 2: Convert to fraction form
    25,385.66/38,080.68 = 6,665.60/x
  3. Step 3: Cross multiply
    25,385.66x = 38,080.68 × 6,665.60
  4. Step 4: Simplify right side
    25,385.66x = 253,830,580.61
  5. Step 5: Solve for x
    x = 253,830,580.61/25,385.66
  6. Step 6: Final answer
    x = 9,998.98

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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.