Home / 40,853.76-61,236.96-21,127.20

Finding the Fourth Proportional to 40,853.76, 61,236.96 and 21,127.20

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Solution

The fourth proportional to 40,853.76, 61,236.96 and 21,127.20 is: 31,668.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,853.76 : 61,236.96 = 21,127.20 : x
  2. Step 2: Convert to fraction form
    40,853.76/61,236.96 = 21,127.20/x
  3. Step 3: Cross multiply
    40,853.76x = 61,236.96 × 21,127.20
  4. Step 4: Simplify right side
    40,853.76x = 1,293,765,501.31
  5. Step 5: Solve for x
    x = 1,293,765,501.31/40,853.76
  6. Step 6: Final answer
    x = 31,668.21

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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.