Home / 28,294.20-39,043.40-16,357.46

Finding the Fourth Proportional to 28,294.20, 39,043.40 and 16,357.46

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Solution

The fourth proportional to 28,294.20, 39,043.40 and 16,357.46 is: 22,571.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,294.20 : 39,043.40 = 16,357.46 : x
  2. Step 2: Convert to fraction form
    28,294.20/39,043.40 = 16,357.46/x
  3. Step 3: Cross multiply
    28,294.20x = 39,043.40 × 16,357.46
  4. Step 4: Simplify right side
    28,294.20x = 638,650,576.76
  5. Step 5: Solve for x
    x = 638,650,576.76/28,294.20
  6. Step 6: Final answer
    x = 22,571.78

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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.