Home / 28,871.24-39,838.84-16,125.28

Finding the Fourth Proportional to 28,871.24, 39,838.84 and 16,125.28

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Solution

The fourth proportional to 28,871.24, 39,838.84 and 16,125.28 is: 22,250.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,871.24 : 39,838.84 = 16,125.28 : x
  2. Step 2: Convert to fraction form
    28,871.24/39,838.84 = 16,125.28/x
  3. Step 3: Cross multiply
    28,871.24x = 39,838.84 × 16,125.28
  4. Step 4: Simplify right side
    28,871.24x = 642,412,309.96
  5. Step 5: Solve for x
    x = 642,412,309.96/28,871.24
  6. Step 6: Final answer
    x = 22,250.95

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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.