Home / 40,155.84-60,237.12-13,860.80

Finding the Fourth Proportional to 40,155.84, 60,237.12 and 13,860.80

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Solution

The fourth proportional to 40,155.84, 60,237.12 and 13,860.80 is: 20,792.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,155.84 : 60,237.12 = 13,860.80 : x
  2. Step 2: Convert to fraction form
    40,155.84/60,237.12 = 13,860.80/x
  3. Step 3: Cross multiply
    40,155.84x = 60,237.12 × 13,860.80
  4. Step 4: Simplify right side
    40,155.84x = 834,934,672.90
  5. Step 5: Solve for x
    x = 834,934,672.90/40,155.84
  6. Step 6: Final answer
    x = 20,792.36

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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.