Home / 25,562.40-38,343.60-9,990.96

Finding the Fourth Proportional to 25,562.40, 38,343.60 and 9,990.96

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Solution

The fourth proportional to 25,562.40, 38,343.60 and 9,990.96 is: 14,986.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,562.40 : 38,343.60 = 9,990.96 : x
  2. Step 2: Convert to fraction form
    25,562.40/38,343.60 = 9,990.96/x
  3. Step 3: Cross multiply
    25,562.40x = 38,343.60 × 9,990.96
  4. Step 4: Simplify right side
    25,562.40x = 383,089,373.86
  5. Step 5: Solve for x
    x = 383,089,373.86/25,562.40
  6. Step 6: Final answer
    x = 14,986.44

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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.