Home / 28,078.18-42,109.03-23,135.56

Finding the Fourth Proportional to 28,078.18, 42,109.03 and 23,135.56

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Solution

The fourth proportional to 28,078.18, 42,109.03 and 23,135.56 is: 34,696.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,078.18 : 42,109.03 = 23,135.56 : x
  2. Step 2: Convert to fraction form
    28,078.18/42,109.03 = 23,135.56/x
  3. Step 3: Cross multiply
    28,078.18x = 42,109.03 × 23,135.56
  4. Step 4: Simplify right side
    28,078.18x = 974,215,990.11
  5. Step 5: Solve for x
    x = 974,215,990.11/28,078.18
  6. Step 6: Final answer
    x = 34,696.55

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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.