Home / 40,947.68-61,420.82-18,445.84

Finding the Fourth Proportional to 40,947.68, 61,420.82 and 18,445.84

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Solution

The fourth proportional to 40,947.68, 61,420.82 and 18,445.84 is: 27,668.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,947.68 : 61,420.82 = 18,445.84 : x
  2. Step 2: Convert to fraction form
    40,947.68/61,420.82 = 18,445.84/x
  3. Step 3: Cross multiply
    40,947.68x = 61,420.82 × 18,445.84
  4. Step 4: Simplify right side
    40,947.68x = 1,132,958,618.39
  5. Step 5: Solve for x
    x = 1,132,958,618.39/40,947.68
  6. Step 6: Final answer
    x = 27,668.44

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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.