Home / 40,360.40-60,550.28-12,658.40

Finding the Fourth Proportional to 40,360.40, 60,550.28 and 12,658.40

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Solution

The fourth proportional to 40,360.40, 60,550.28 and 12,658.40 is: 18,990.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,360.40 : 60,550.28 = 12,658.40 : x
  2. Step 2: Convert to fraction form
    40,360.40/60,550.28 = 12,658.40/x
  3. Step 3: Cross multiply
    40,360.40x = 60,550.28 × 12,658.40
  4. Step 4: Simplify right side
    40,360.40x = 766,469,664.35
  5. Step 5: Solve for x
    x = 766,469,664.35/40,360.40
  6. Step 6: Final answer
    x = 18,990.64

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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.