Home / 28,219.60-42,207.90-25,279.30

Finding the Fourth Proportional to 28,219.60, 42,207.90 and 25,279.30

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Solution

The fourth proportional to 28,219.60, 42,207.90 and 25,279.30 is: 37,810.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,219.60 : 42,207.90 = 25,279.30 : x
  2. Step 2: Convert to fraction form
    28,219.60/42,207.90 = 25,279.30/x
  3. Step 3: Cross multiply
    28,219.60x = 42,207.90 × 25,279.30
  4. Step 4: Simplify right side
    28,219.60x = 1,066,986,166.47
  5. Step 5: Solve for x
    x = 1,066,986,166.47/28,219.60
  6. Step 6: Final answer
    x = 37,810.11

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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.