Home / 40,426.40-60,661.20-18,243.20

Finding the Fourth Proportional to 40,426.40, 60,661.20 and 18,243.20

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Solution

The fourth proportional to 40,426.40, 60,661.20 and 18,243.20 is: 27,374.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,426.40 : 60,661.20 = 18,243.20 : x
  2. Step 2: Convert to fraction form
    40,426.40/60,661.20 = 18,243.20/x
  3. Step 3: Cross multiply
    40,426.40x = 60,661.20 × 18,243.20
  4. Step 4: Simplify right side
    40,426.40x = 1,106,654,403.84
  5. Step 5: Solve for x
    x = 1,106,654,403.84/40,426.40
  6. Step 6: Final answer
    x = 27,374.55

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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.