Home / 28,358.20-42,537.30-27,920.80

Finding the Fourth Proportional to 28,358.20, 42,537.30 and 27,920.80

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Solution

The fourth proportional to 28,358.20, 42,537.30 and 27,920.80 is: 41,881.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,358.20 : 42,537.30 = 27,920.80 : x
  2. Step 2: Convert to fraction form
    28,358.20/42,537.30 = 27,920.80/x
  3. Step 3: Cross multiply
    28,358.20x = 42,537.30 × 27,920.80
  4. Step 4: Simplify right side
    28,358.20x = 1,187,675,445.84
  5. Step 5: Solve for x
    x = 1,187,675,445.84/28,358.20
  6. Step 6: Final answer
    x = 41,881.20

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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.