Home / 25,325.96-37,990.80-8,685.86

Finding the Fourth Proportional to 25,325.96, 37,990.80 and 8,685.86

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Solution

The fourth proportional to 25,325.96, 37,990.80 and 8,685.86 is: 13,029.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,325.96 : 37,990.80 = 8,685.86 : x
  2. Step 2: Convert to fraction form
    25,325.96/37,990.80 = 8,685.86/x
  3. Step 3: Cross multiply
    25,325.96x = 37,990.80 × 8,685.86
  4. Step 4: Simplify right side
    25,325.96x = 329,982,580.13
  5. Step 5: Solve for x
    x = 329,982,580.13/25,325.96
  6. Step 6: Final answer
    x = 13,029.42

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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.