Home / 40,622.80-60,925.56-12,905.68

Finding the Fourth Proportional to 40,622.80, 60,925.56 and 12,905.68

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Solution

The fourth proportional to 40,622.80, 60,925.56 and 12,905.68 is: 19,355.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,622.80 : 60,925.56 = 12,905.68 : x
  2. Step 2: Convert to fraction form
    40,622.80/60,925.56 = 12,905.68/x
  3. Step 3: Cross multiply
    40,622.80x = 60,925.56 × 12,905.68
  4. Step 4: Simplify right side
    40,622.80x = 786,285,781.18
  5. Step 5: Solve for x
    x = 786,285,781.18/40,622.80
  6. Step 6: Final answer
    x = 19,355.78

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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.