Home / 31,929.68-47,895.84-12,209.68

Finding the Fourth Proportional to 31,929.68, 47,895.84 and 12,209.68

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Solution

The fourth proportional to 31,929.68, 47,895.84 and 12,209.68 is: 18,315.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,929.68 : 47,895.84 = 12,209.68 : x
  2. Step 2: Convert to fraction form
    31,929.68/47,895.84 = 12,209.68/x
  3. Step 3: Cross multiply
    31,929.68x = 47,895.84 × 12,209.68
  4. Step 4: Simplify right side
    31,929.68x = 584,792,879.73
  5. Step 5: Solve for x
    x = 584,792,879.73/31,929.68
  6. Step 6: Final answer
    x = 18,315.02

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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.