Home / 40,243.20-60,364.80-10,665.60

Finding the Fourth Proportional to 40,243.20, 60,364.80 and 10,665.60

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Solution

The fourth proportional to 40,243.20, 60,364.80 and 10,665.60 is: 15,998.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,243.20 : 60,364.80 = 10,665.60 : x
  2. Step 2: Convert to fraction form
    40,243.20/60,364.80 = 10,665.60/x
  3. Step 3: Cross multiply
    40,243.20x = 60,364.80 × 10,665.60
  4. Step 4: Simplify right side
    40,243.20x = 643,826,810.88
  5. Step 5: Solve for x
    x = 643,826,810.88/40,243.20
  6. Step 6: Final answer
    x = 15,998.40

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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.