Home / 28,176.06-42,266.49-7,399.50

Finding the Fourth Proportional to 28,176.06, 42,266.49 and 7,399.50

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Solution

The fourth proportional to 28,176.06, 42,266.49 and 7,399.50 is: 11,099.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,176.06 : 42,266.49 = 7,399.50 : x
  2. Step 2: Convert to fraction form
    28,176.06/42,266.49 = 7,399.50/x
  3. Step 3: Cross multiply
    28,176.06x = 42,266.49 × 7,399.50
  4. Step 4: Simplify right side
    28,176.06x = 312,750,892.76
  5. Step 5: Solve for x
    x = 312,750,892.76/28,176.06
  6. Step 6: Final answer
    x = 11,099.88

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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.