Home / 47,612.92-71,413.14-12,555.34

Finding the Fourth Proportional to 47,612.92, 71,413.14 and 12,555.34

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Solution

The fourth proportional to 47,612.92, 71,413.14 and 12,555.34 is: 18,831.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,612.92 : 71,413.14 = 12,555.34 : x
  2. Step 2: Convert to fraction form
    47,612.92/71,413.14 = 12,555.34/x
  3. Step 3: Cross multiply
    47,612.92x = 71,413.14 × 12,555.34
  4. Step 4: Simplify right side
    47,612.92x = 896,616,253.17
  5. Step 5: Solve for x
    x = 896,616,253.17/47,612.92
  6. Step 6: Final answer
    x = 18,831.36

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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.