Home / 28,806.50-39,752.98-16,231.70

Finding the Fourth Proportional to 28,806.50, 39,752.98 and 16,231.70

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Solution

The fourth proportional to 28,806.50, 39,752.98 and 16,231.70 is: 22,399.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,806.50 : 39,752.98 = 16,231.70 : x
  2. Step 2: Convert to fraction form
    28,806.50/39,752.98 = 16,231.70/x
  3. Step 3: Cross multiply
    28,806.50x = 39,752.98 × 16,231.70
  4. Step 4: Simplify right side
    28,806.50x = 645,258,445.47
  5. Step 5: Solve for x
    x = 645,258,445.47/28,806.50
  6. Step 6: Final answer
    x = 22,399.75

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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.