Home / 21,337.82-29,443.84-15,039.26

Finding the Fourth Proportional to 21,337.82, 29,443.84 and 15,039.26

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Solution

The fourth proportional to 21,337.82, 29,443.84 and 15,039.26 is: 20,752.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,337.82 : 29,443.84 = 15,039.26 : x
  2. Step 2: Convert to fraction form
    21,337.82/29,443.84 = 15,039.26/x
  3. Step 3: Cross multiply
    21,337.82x = 29,443.84 × 15,039.26
  4. Step 4: Simplify right side
    21,337.82x = 442,813,565.16
  5. Step 5: Solve for x
    x = 442,813,565.16/21,337.82
  6. Step 6: Final answer
    x = 20,752.52

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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.