Home / 43,086.78-64,591.02-15,378.30

Finding the Fourth Proportional to 43,086.78, 64,591.02 and 15,378.30

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Solution

The fourth proportional to 43,086.78, 64,591.02 and 15,378.30 is: 23,053.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,086.78 : 64,591.02 = 15,378.30 : x
  2. Step 2: Convert to fraction form
    43,086.78/64,591.02 = 15,378.30/x
  3. Step 3: Cross multiply
    43,086.78x = 64,591.02 × 15,378.30
  4. Step 4: Simplify right side
    43,086.78x = 993,300,082.87
  5. Step 5: Solve for x
    x = 993,300,082.87/43,086.78
  6. Step 6: Final answer
    x = 23,053.48

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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.