Home / 29,116.23-40,127.10-21,144.62

Finding the Fourth Proportional to 29,116.23, 40,127.10 and 21,144.62

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Solution

The fourth proportional to 29,116.23, 40,127.10 and 21,144.62 is: 29,140.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,116.23 : 40,127.10 = 21,144.62 : x
  2. Step 2: Convert to fraction form
    29,116.23/40,127.10 = 21,144.62/x
  3. Step 3: Cross multiply
    29,116.23x = 40,127.10 × 21,144.62
  4. Step 4: Simplify right side
    29,116.23x = 848,472,080.57
  5. Step 5: Solve for x
    x = 848,472,080.57/29,116.23
  6. Step 6: Final answer
    x = 29,140.86

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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.