Home / 39,996.32-59,994.40-20,280.48

Finding the Fourth Proportional to 39,996.32, 59,994.40 and 20,280.48

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Solution

The fourth proportional to 39,996.32, 59,994.40 and 20,280.48 is: 30,420.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,996.32 : 59,994.40 = 20,280.48 : x
  2. Step 2: Convert to fraction form
    39,996.32/59,994.40 = 20,280.48/x
  3. Step 3: Cross multiply
    39,996.32x = 59,994.40 × 20,280.48
  4. Step 4: Simplify right side
    39,996.32x = 1,216,715,229.31
  5. Step 5: Solve for x
    x = 1,216,715,229.31/39,996.32
  6. Step 6: Final answer
    x = 30,420.68

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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.