Home / 28,156.80-42,235.20-22,885.44

Finding the Fourth Proportional to 28,156.80, 42,235.20 and 22,885.44

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Solution

The fourth proportional to 28,156.80, 42,235.20 and 22,885.44 is: 34,328.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,156.80 : 42,235.20 = 22,885.44 : x
  2. Step 2: Convert to fraction form
    28,156.80/42,235.20 = 22,885.44/x
  3. Step 3: Cross multiply
    28,156.80x = 42,235.20 × 22,885.44
  4. Step 4: Simplify right side
    28,156.80x = 966,571,135.49
  5. Step 5: Solve for x
    x = 966,571,135.49/28,156.80
  6. Step 6: Final answer
    x = 34,328.16

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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.