Home / 28,422.60-42,605.10-16,729.80

Finding the Fourth Proportional to 28,422.60, 42,605.10 and 16,729.80

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Solution

The fourth proportional to 28,422.60, 42,605.10 and 16,729.80 is: 25,077.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,422.60 : 42,605.10 = 16,729.80 : x
  2. Step 2: Convert to fraction form
    28,422.60/42,605.10 = 16,729.80/x
  3. Step 3: Cross multiply
    28,422.60x = 42,605.10 × 16,729.80
  4. Step 4: Simplify right side
    28,422.60x = 712,774,801.98
  5. Step 5: Solve for x
    x = 712,774,801.98/28,422.60
  6. Step 6: Final answer
    x = 25,077.75

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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.