Home / 39,226.31-54,132.62-21,321.32

Finding the Fourth Proportional to 39,226.31, 54,132.62 and 21,321.32

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Solution

The fourth proportional to 39,226.31, 54,132.62 and 21,321.32 is: 29,423.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,226.31 : 54,132.62 = 21,321.32 : x
  2. Step 2: Convert to fraction form
    39,226.31/54,132.62 = 21,321.32/x
  3. Step 3: Cross multiply
    39,226.31x = 54,132.62 × 21,321.32
  4. Step 4: Simplify right side
    39,226.31x = 1,154,178,696.10
  5. Step 5: Solve for x
    x = 1,154,178,696.10/39,226.31
  6. Step 6: Final answer
    x = 29,423.59

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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.