Home / 21,641.29-29,846.15-15,256.61

Finding the Fourth Proportional to 21,641.29, 29,846.15 and 15,256.61

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Solution

The fourth proportional to 21,641.29, 29,846.15 and 15,256.61 is: 21,040.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,641.29 : 29,846.15 = 15,256.61 : x
  2. Step 2: Convert to fraction form
    21,641.29/29,846.15 = 15,256.61/x
  3. Step 3: Cross multiply
    21,641.29x = 29,846.15 × 15,256.61
  4. Step 4: Simplify right side
    21,641.29x = 455,351,183.31
  5. Step 5: Solve for x
    x = 455,351,183.31/21,641.29
  6. Step 6: Final answer
    x = 21,040.85

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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.