Home / 21,057.56-29,062.68-12,995.92

Finding the Fourth Proportional to 21,057.56, 29,062.68 and 12,995.92

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Solution

The fourth proportional to 21,057.56, 29,062.68 and 12,995.92 is: 17,936.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,057.56 : 29,062.68 = 12,995.92 : x
  2. Step 2: Convert to fraction form
    21,057.56/29,062.68 = 12,995.92/x
  3. Step 3: Cross multiply
    21,057.56x = 29,062.68 × 12,995.92
  4. Step 4: Simplify right side
    21,057.56x = 377,696,264.27
  5. Step 5: Solve for x
    x = 377,696,264.27/21,057.56
  6. Step 6: Final answer
    x = 17,936.37

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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.