Home / 40,849.99-61,275.03-12,770.20

Finding the Fourth Proportional to 40,849.99, 61,275.03 and 12,770.20

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Solution

The fourth proportional to 40,849.99, 61,275.03 and 12,770.20 is: 19,155.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,849.99 : 61,275.03 = 12,770.20 : x
  2. Step 2: Convert to fraction form
    40,849.99/61,275.03 = 12,770.20/x
  3. Step 3: Cross multiply
    40,849.99x = 61,275.03 × 12,770.20
  4. Step 4: Simplify right side
    40,849.99x = 782,494,388.11
  5. Step 5: Solve for x
    x = 782,494,388.11/40,849.99
  6. Step 6: Final answer
    x = 19,155.31

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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.