Home / 28,204.48-42,314.40-9,739.20

Finding the Fourth Proportional to 28,204.48, 42,314.40 and 9,739.20

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Solution

The fourth proportional to 28,204.48, 42,314.40 and 9,739.20 is: 14,611.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,204.48 : 42,314.40 = 9,739.20 : x
  2. Step 2: Convert to fraction form
    28,204.48/42,314.40 = 9,739.20/x
  3. Step 3: Cross multiply
    28,204.48x = 42,314.40 × 9,739.20
  4. Step 4: Simplify right side
    28,204.48x = 412,108,404.48
  5. Step 5: Solve for x
    x = 412,108,404.48/28,204.48
  6. Step 6: Final answer
    x = 14,611.45

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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.