Home / 45,671.38-63,022.05-28,670.19

Finding the Fourth Proportional to 45,671.38, 63,022.05 and 28,670.19

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Solution

The fourth proportional to 45,671.38, 63,022.05 and 28,670.19 is: 39,562.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,671.38 : 63,022.05 = 28,670.19 : x
  2. Step 2: Convert to fraction form
    45,671.38/63,022.05 = 28,670.19/x
  3. Step 3: Cross multiply
    45,671.38x = 63,022.05 × 28,670.19
  4. Step 4: Simplify right side
    45,671.38x = 1,806,854,147.69
  5. Step 5: Solve for x
    x = 1,806,854,147.69/45,671.38
  6. Step 6: Final answer
    x = 39,562.07

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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.