Home / 28,429.17-39,232.17-15,853.92

Finding the Fourth Proportional to 28,429.17, 39,232.17 and 15,853.92

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Solution

The fourth proportional to 28,429.17, 39,232.17 and 15,853.92 is: 21,878.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,429.17 : 39,232.17 = 15,853.92 : x
  2. Step 2: Convert to fraction form
    28,429.17/39,232.17 = 15,853.92/x
  3. Step 3: Cross multiply
    28,429.17x = 39,232.17 × 15,853.92
  4. Step 4: Simplify right side
    28,429.17x = 621,983,684.61
  5. Step 5: Solve for x
    x = 621,983,684.61/28,429.17
  6. Step 6: Final answer
    x = 21,878.36

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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.