Home / 47,998.62-71,990.64-18,430.38

Finding the Fourth Proportional to 47,998.62, 71,990.64 and 18,430.38

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Solution

The fourth proportional to 47,998.62, 71,990.64 and 18,430.38 is: 27,642.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,998.62 : 71,990.64 = 18,430.38 : x
  2. Step 2: Convert to fraction form
    47,998.62/71,990.64 = 18,430.38/x
  3. Step 3: Cross multiply
    47,998.62x = 71,990.64 × 18,430.38
  4. Step 4: Simplify right side
    47,998.62x = 1,326,814,851.64
  5. Step 5: Solve for x
    x = 1,326,814,851.64/47,998.62
  6. Step 6: Final answer
    x = 27,642.77

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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.