Home / 38,989.40-58,487.80-10,909.44

Finding the Fourth Proportional to 38,989.40, 58,487.80 and 10,909.44

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Solution

The fourth proportional to 38,989.40, 58,487.80 and 10,909.44 is: 16,365.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,989.40 : 58,487.80 = 10,909.44 : x
  2. Step 2: Convert to fraction form
    38,989.40/58,487.80 = 10,909.44/x
  3. Step 3: Cross multiply
    38,989.40x = 58,487.80 × 10,909.44
  4. Step 4: Simplify right side
    38,989.40x = 638,069,144.83
  5. Step 5: Solve for x
    x = 638,069,144.83/38,989.40
  6. Step 6: Final answer
    x = 16,365.20

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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.