Home / 28,819.98-39,772.35-16,247.70

Finding the Fourth Proportional to 28,819.98, 39,772.35 and 16,247.70

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Solution

The fourth proportional to 28,819.98, 39,772.35 and 16,247.70 is: 22,422.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,819.98 : 39,772.35 = 16,247.70 : x
  2. Step 2: Convert to fraction form
    28,819.98/39,772.35 = 16,247.70/x
  3. Step 3: Cross multiply
    28,819.98x = 39,772.35 × 16,247.70
  4. Step 4: Simplify right side
    28,819.98x = 646,209,211.10
  5. Step 5: Solve for x
    x = 646,209,211.10/28,819.98
  6. Step 6: Final answer
    x = 22,422.26

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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.