Home / 29,240.90-40,352.73-15,812.42

Finding the Fourth Proportional to 29,240.90, 40,352.73 and 15,812.42

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Solution

The fourth proportional to 29,240.90, 40,352.73 and 15,812.42 is: 21,821.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,240.90 : 40,352.73 = 15,812.42 : x
  2. Step 2: Convert to fraction form
    29,240.90/40,352.73 = 15,812.42/x
  3. Step 3: Cross multiply
    29,240.90x = 40,352.73 × 15,812.42
  4. Step 4: Simplify right side
    29,240.90x = 638,074,142.79
  5. Step 5: Solve for x
    x = 638,074,142.79/29,240.90
  6. Step 6: Final answer
    x = 21,821.29

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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.