Home / 31,328.48-47,016.07-12,608.66

Finding the Fourth Proportional to 31,328.48, 47,016.07 and 12,608.66

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Solution

The fourth proportional to 31,328.48, 47,016.07 and 12,608.66 is: 18,922.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,328.48 : 47,016.07 = 12,608.66 : x
  2. Step 2: Convert to fraction form
    31,328.48/47,016.07 = 12,608.66/x
  3. Step 3: Cross multiply
    31,328.48x = 47,016.07 × 12,608.66
  4. Step 4: Simplify right side
    31,328.48x = 592,809,727.18
  5. Step 5: Solve for x
    x = 592,809,727.18/31,328.48
  6. Step 6: Final answer
    x = 18,922.39

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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.