Home / 28,160.67-38,850.69-18,087.72

Finding the Fourth Proportional to 28,160.67, 38,850.69 and 18,087.72

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Solution

The fourth proportional to 28,160.67, 38,850.69 and 18,087.72 is: 24,953.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,160.67 : 38,850.69 = 18,087.72 : x
  2. Step 2: Convert to fraction form
    28,160.67/38,850.69 = 18,087.72/x
  3. Step 3: Cross multiply
    28,160.67x = 38,850.69 × 18,087.72
  4. Step 4: Simplify right side
    28,160.67x = 702,720,402.53
  5. Step 5: Solve for x
    x = 702,720,402.53/28,160.67
  6. Step 6: Final answer
    x = 24,953.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.