Home / 22,707.20-31,339.20-14,217.80

Finding the Fourth Proportional to 22,707.20, 31,339.20 and 14,217.80

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Solution

The fourth proportional to 22,707.20, 31,339.20 and 14,217.80 is: 19,622.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,707.20 : 31,339.20 = 14,217.80 : x
  2. Step 2: Convert to fraction form
    22,707.20/31,339.20 = 14,217.80/x
  3. Step 3: Cross multiply
    22,707.20x = 31,339.20 × 14,217.80
  4. Step 4: Simplify right side
    22,707.20x = 445,574,477.76
  5. Step 5: Solve for x
    x = 445,574,477.76/22,707.20
  6. Step 6: Final answer
    x = 19,622.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.