Home / 28,868.79-39,838.55-16,122.19

Finding the Fourth Proportional to 28,868.79, 39,838.55 and 16,122.19

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Solution

The fourth proportional to 28,868.79, 39,838.55 and 16,122.19 is: 22,248.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,868.79 : 39,838.55 = 16,122.19 : x
  2. Step 2: Convert to fraction form
    28,868.79/39,838.55 = 16,122.19/x
  3. Step 3: Cross multiply
    28,868.79x = 39,838.55 × 16,122.19
  4. Step 4: Simplify right side
    28,868.79x = 642,284,672.42
  5. Step 5: Solve for x
    x = 642,284,672.42/28,868.79
  6. Step 6: Final answer
    x = 22,248.41

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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.