Home / 40,005.20-60,015.90-13,712.60

Finding the Fourth Proportional to 40,005.20, 60,015.90 and 13,712.60

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Solution

The fourth proportional to 40,005.20, 60,015.90 and 13,712.60 is: 20,571.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,005.20 : 60,015.90 = 13,712.60 : x
  2. Step 2: Convert to fraction form
    40,005.20/60,015.90 = 13,712.60/x
  3. Step 3: Cross multiply
    40,005.20x = 60,015.90 × 13,712.60
  4. Step 4: Simplify right side
    40,005.20x = 822,974,030.34
  5. Step 5: Solve for x
    x = 822,974,030.34/40,005.20
  6. Step 6: Final answer
    x = 20,571.68

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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.