Home / 28,938.06-39,934.35-16,191.21

Finding the Fourth Proportional to 28,938.06, 39,934.35 and 16,191.21

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Solution

The fourth proportional to 28,938.06, 39,934.35 and 16,191.21 is: 22,343.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,938.06 : 39,934.35 = 16,191.21 : x
  2. Step 2: Convert to fraction form
    28,938.06/39,934.35 = 16,191.21/x
  3. Step 3: Cross multiply
    28,938.06x = 39,934.35 × 16,191.21
  4. Step 4: Simplify right side
    28,938.06x = 646,585,447.06
  5. Step 5: Solve for x
    x = 646,585,447.06/28,938.06
  6. Step 6: Final answer
    x = 22,343.77

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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.