Home / 37,439.38-51,668.44-20,445.20

Finding the Fourth Proportional to 37,439.38, 51,668.44 and 20,445.20

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Solution

The fourth proportional to 37,439.38, 51,668.44 and 20,445.20 is: 28,215.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,439.38 : 51,668.44 = 20,445.20 : x
  2. Step 2: Convert to fraction form
    37,439.38/51,668.44 = 20,445.20/x
  3. Step 3: Cross multiply
    37,439.38x = 51,668.44 × 20,445.20
  4. Step 4: Simplify right side
    37,439.38x = 1,056,371,460.32
  5. Step 5: Solve for x
    x = 1,056,371,460.32/37,439.38
  6. Step 6: Final answer
    x = 28,215.52

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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.