Home / 28,077.60-42,115.98-8,356.26

Finding the Fourth Proportional to 28,077.60, 42,115.98 and 8,356.26

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Solution

The fourth proportional to 28,077.60, 42,115.98 and 8,356.26 is: 12,534.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,077.60 : 42,115.98 = 8,356.26 : x
  2. Step 2: Convert to fraction form
    28,077.60/42,115.98 = 8,356.26/x
  3. Step 3: Cross multiply
    28,077.60x = 42,115.98 × 8,356.26
  4. Step 4: Simplify right side
    28,077.60x = 351,932,079.03
  5. Step 5: Solve for x
    x = 351,932,079.03/28,077.60
  6. Step 6: Final answer
    x = 12,534.27

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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.