Home / 28,087.18-42,133.53-7,310.68

Finding the Fourth Proportional to 28,087.18, 42,133.53 and 7,310.68

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Solution

The fourth proportional to 28,087.18, 42,133.53 and 7,310.68 is: 10,966.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,087.18 : 42,133.53 = 7,310.68 : x
  2. Step 2: Convert to fraction form
    28,087.18/42,133.53 = 7,310.68/x
  3. Step 3: Cross multiply
    28,087.18x = 42,133.53 × 7,310.68
  4. Step 4: Simplify right side
    28,087.18x = 308,024,755.10
  5. Step 5: Solve for x
    x = 308,024,755.10/28,087.18
  6. Step 6: Final answer
    x = 10,966.74

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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.