Home / 29,507.78-40,693.38-21,972.62

Finding the Fourth Proportional to 29,507.78, 40,693.38 and 21,972.62

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Solution

The fourth proportional to 29,507.78, 40,693.38 and 21,972.62 is: 30,301.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,507.78 : 40,693.38 = 21,972.62 : x
  2. Step 2: Convert to fraction form
    29,507.78/40,693.38 = 21,972.62/x
  3. Step 3: Cross multiply
    29,507.78x = 40,693.38 × 21,972.62
  4. Step 4: Simplify right side
    29,507.78x = 894,140,175.26
  5. Step 5: Solve for x
    x = 894,140,175.26/29,507.78
  6. Step 6: Final answer
    x = 30,301.84

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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.