Home / 45,422.78-62,683.38-28,188.74

Finding the Fourth Proportional to 45,422.78, 62,683.38 and 28,188.74

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Solution

The fourth proportional to 45,422.78, 62,683.38 and 28,188.74 is: 38,900.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,422.78 : 62,683.38 = 28,188.74 : x
  2. Step 2: Convert to fraction form
    45,422.78/62,683.38 = 28,188.74/x
  3. Step 3: Cross multiply
    45,422.78x = 62,683.38 × 28,188.74
  4. Step 4: Simplify right side
    45,422.78x = 1,766,965,501.14
  5. Step 5: Solve for x
    x = 1,766,965,501.14/45,422.78
  6. Step 6: Final answer
    x = 38,900.43

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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.