Home / 19,344.20-29,025.90-7,657.80

Finding the Fourth Proportional to 19,344.20, 29,025.90 and 7,657.80

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Solution

The fourth proportional to 19,344.20, 29,025.90 and 7,657.80 is: 11,490.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,344.20 : 29,025.90 = 7,657.80 : x
  2. Step 2: Convert to fraction form
    19,344.20/29,025.90 = 7,657.80/x
  3. Step 3: Cross multiply
    19,344.20x = 29,025.90 × 7,657.80
  4. Step 4: Simplify right side
    19,344.20x = 222,274,537.02
  5. Step 5: Solve for x
    x = 222,274,537.02/19,344.20
  6. Step 6: Final answer
    x = 11,490.50

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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.