Home / 40,399.20-60,598.80-12,693.60

Finding the Fourth Proportional to 40,399.20, 60,598.80 and 12,693.60

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Solution

The fourth proportional to 40,399.20, 60,598.80 and 12,693.60 is: 19,040.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,399.20 : 60,598.80 = 12,693.60 : x
  2. Step 2: Convert to fraction form
    40,399.20/60,598.80 = 12,693.60/x
  3. Step 3: Cross multiply
    40,399.20x = 60,598.80 × 12,693.60
  4. Step 4: Simplify right side
    40,399.20x = 769,216,927.68
  5. Step 5: Solve for x
    x = 769,216,927.68/40,399.20
  6. Step 6: Final answer
    x = 19,040.40

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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.