Home / 54,441.76-81,674.28-18,904.18

Finding the Fourth Proportional to 54,441.76, 81,674.28 and 18,904.18

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Solution

The fourth proportional to 54,441.76, 81,674.28 and 18,904.18 is: 28,360.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,441.76 : 81,674.28 = 18,904.18 : x
  2. Step 2: Convert to fraction form
    54,441.76/81,674.28 = 18,904.18/x
  3. Step 3: Cross multiply
    54,441.76x = 81,674.28 × 18,904.18
  4. Step 4: Simplify right side
    54,441.76x = 1,543,985,290.49
  5. Step 5: Solve for x
    x = 1,543,985,290.49/54,441.76
  6. Step 6: Final answer
    x = 28,360.31

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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.