Home / 28,690.06-42,989.67-22,132.30

Finding the Fourth Proportional to 28,690.06, 42,989.67 and 22,132.30

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Solution

The fourth proportional to 28,690.06, 42,989.67 and 22,132.30 is: 33,163.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,690.06 : 42,989.67 = 22,132.30 : x
  2. Step 2: Convert to fraction form
    28,690.06/42,989.67 = 22,132.30/x
  3. Step 3: Cross multiply
    28,690.06x = 42,989.67 × 22,132.30
  4. Step 4: Simplify right side
    28,690.06x = 951,460,273.34
  5. Step 5: Solve for x
    x = 951,460,273.34/28,690.06
  6. Step 6: Final answer
    x = 33,163.41

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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.