Home / 47,998.50-71,990.45-18,430.26

Finding the Fourth Proportional to 47,998.50, 71,990.45 and 18,430.26

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Solution

The fourth proportional to 47,998.50, 71,990.45 and 18,430.26 is: 27,642.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,998.50 : 71,990.45 = 18,430.26 : x
  2. Step 2: Convert to fraction form
    47,998.50/71,990.45 = 18,430.26/x
  3. Step 3: Cross multiply
    47,998.50x = 71,990.45 × 18,430.26
  4. Step 4: Simplify right side
    47,998.50x = 1,326,802,711.02
  5. Step 5: Solve for x
    x = 1,326,802,711.02/47,998.50
  6. Step 6: Final answer
    x = 27,642.59

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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.