Home / 45,239.28-67,868.76-18,930.48

Finding the Fourth Proportional to 45,239.28, 67,868.76 and 18,930.48

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Solution

The fourth proportional to 45,239.28, 67,868.76 and 18,930.48 is: 28,399.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,239.28 : 67,868.76 = 18,930.48 : x
  2. Step 2: Convert to fraction form
    45,239.28/67,868.76 = 18,930.48/x
  3. Step 3: Cross multiply
    45,239.28x = 67,868.76 × 18,930.48
  4. Step 4: Simplify right side
    45,239.28x = 1,284,788,203.80
  5. Step 5: Solve for x
    x = 1,284,788,203.80/45,239.28
  6. Step 6: Final answer
    x = 28,399.84

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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.