Home / 28,868.88-39,838.64-16,122.29

Finding the Fourth Proportional to 28,868.88, 39,838.64 and 16,122.29

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Solution

The fourth proportional to 28,868.88, 39,838.64 and 16,122.29 is: 22,248.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,868.88 : 39,838.64 = 16,122.29 : x
  2. Step 2: Convert to fraction form
    28,868.88/39,838.64 = 16,122.29/x
  3. Step 3: Cross multiply
    28,868.88x = 39,838.64 × 16,122.29
  4. Step 4: Simplify right side
    28,868.88x = 642,289,827.48
  5. Step 5: Solve for x
    x = 642,289,827.48/28,868.88
  6. Step 6: Final answer
    x = 22,248.52

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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.