Home / 40,394.38-55,750.91-30,816.18

Finding the Fourth Proportional to 40,394.38, 55,750.91 and 30,816.18

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Solution

The fourth proportional to 40,394.38, 55,750.91 and 30,816.18 is: 42,531.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,394.38 : 55,750.91 = 30,816.18 : x
  2. Step 2: Convert to fraction form
    40,394.38/55,750.91 = 30,816.18/x
  3. Step 3: Cross multiply
    40,394.38x = 55,750.91 × 30,816.18
  4. Step 4: Simplify right side
    40,394.38x = 1,718,030,077.72
  5. Step 5: Solve for x
    x = 1,718,030,077.72/40,394.38
  6. Step 6: Final answer
    x = 42,531.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.