Home / 29,921.67-41,281.79-18,587.12

Finding the Fourth Proportional to 29,921.67, 41,281.79 and 18,587.12

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Solution

The fourth proportional to 29,921.67, 41,281.79 and 18,587.12 is: 25,643.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,921.67 : 41,281.79 = 18,587.12 : x
  2. Step 2: Convert to fraction form
    29,921.67/41,281.79 = 18,587.12/x
  3. Step 3: Cross multiply
    29,921.67x = 41,281.79 × 18,587.12
  4. Step 4: Simplify right side
    29,921.67x = 767,309,285.20
  5. Step 5: Solve for x
    x = 767,309,285.20/29,921.67
  6. Step 6: Final answer
    x = 25,643.93

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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.