Home / 40,215.40-60,323.10-18,005.20

Finding the Fourth Proportional to 40,215.40, 60,323.10 and 18,005.20

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Solution

The fourth proportional to 40,215.40, 60,323.10 and 18,005.20 is: 27,007.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,215.40 : 60,323.10 = 18,005.20 : x
  2. Step 2: Convert to fraction form
    40,215.40/60,323.10 = 18,005.20/x
  3. Step 3: Cross multiply
    40,215.40x = 60,323.10 × 18,005.20
  4. Step 4: Simplify right side
    40,215.40x = 1,086,129,480.12
  5. Step 5: Solve for x
    x = 1,086,129,480.12/40,215.40
  6. Step 6: Final answer
    x = 27,007.80

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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.