Home / 28,227.10-42,340.67-7,168.72

Finding the Fourth Proportional to 28,227.10, 42,340.67 and 7,168.72

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Solution

The fourth proportional to 28,227.10, 42,340.67 and 7,168.72 is: 10,753.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,227.10 : 42,340.67 = 7,168.72 : x
  2. Step 2: Convert to fraction form
    28,227.10/42,340.67 = 7,168.72/x
  3. Step 3: Cross multiply
    28,227.10x = 42,340.67 × 7,168.72
  4. Step 4: Simplify right side
    28,227.10x = 303,528,266.15
  5. Step 5: Solve for x
    x = 303,528,266.15/28,227.10
  6. Step 6: Final answer
    x = 10,753.08

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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.