Home / 21,140.29-29,160.41-13,596.46

Finding the Fourth Proportional to 21,140.29, 29,160.41 and 13,596.46

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Solution

The fourth proportional to 21,140.29, 29,160.41 and 13,596.46 is: 18,754.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,140.29 : 29,160.41 = 13,596.46 : x
  2. Step 2: Convert to fraction form
    21,140.29/29,160.41 = 13,596.46/x
  3. Step 3: Cross multiply
    21,140.29x = 29,160.41 × 13,596.46
  4. Step 4: Simplify right side
    21,140.29x = 396,478,207.27
  5. Step 5: Solve for x
    x = 396,478,207.27/21,140.29
  6. Step 6: Final answer
    x = 18,754.62

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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.