Home / 28,166.50-42,221.78-15,692.22

Finding the Fourth Proportional to 28,166.50, 42,221.78 and 15,692.22

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Solution

The fourth proportional to 28,166.50, 42,221.78 and 15,692.22 is: 23,522.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,166.50 : 42,221.78 = 15,692.22 : x
  2. Step 2: Convert to fraction form
    28,166.50/42,221.78 = 15,692.22/x
  3. Step 3: Cross multiply
    28,166.50x = 42,221.78 × 15,692.22
  4. Step 4: Simplify right side
    28,166.50x = 662,553,460.55
  5. Step 5: Solve for x
    x = 662,553,460.55/28,166.50
  6. Step 6: Final answer
    x = 23,522.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.