Home / 40,632.72-60,948.36-12,930

Finding the Fourth Proportional to 40,632.72, 60,948.36 and 12,930

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Solution

The fourth proportional to 40,632.72, 60,948.36 and 12,930 is: 19,394.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,632.72 : 60,948.36 = 12,930 : x
  2. Step 2: Convert to fraction form
    40,632.72/60,948.36 = 12,930/x
  3. Step 3: Cross multiply
    40,632.72x = 60,948.36 × 12,930
  4. Step 4: Simplify right side
    40,632.72x = 788,062,294.80
  5. Step 5: Solve for x
    x = 788,062,294.80/40,632.72
  6. Step 6: Final answer
    x = 19,394.77

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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.