Home / 28,962.16-39,942.12-19,543.48

Finding the Fourth Proportional to 28,962.16, 39,942.12 and 19,543.48

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Solution

The fourth proportional to 28,962.16, 39,942.12 and 19,543.48 is: 26,952.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,962.16 : 39,942.12 = 19,543.48 : x
  2. Step 2: Convert to fraction form
    28,962.16/39,942.12 = 19,543.48/x
  3. Step 3: Cross multiply
    28,962.16x = 39,942.12 × 19,543.48
  4. Step 4: Simplify right side
    28,962.16x = 780,608,023.38
  5. Step 5: Solve for x
    x = 780,608,023.38/28,962.16
  6. Step 6: Final answer
    x = 26,952.69

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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.