Home / 21,707.92-29,957.54-12,276.28

Finding the Fourth Proportional to 21,707.92, 29,957.54 and 12,276.28

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Solution

The fourth proportional to 21,707.92, 29,957.54 and 12,276.28 is: 16,941.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,707.92 : 29,957.54 = 12,276.28 : x
  2. Step 2: Convert to fraction form
    21,707.92/29,957.54 = 12,276.28/x
  3. Step 3: Cross multiply
    21,707.92x = 29,957.54 × 12,276.28
  4. Step 4: Simplify right side
    21,707.92x = 367,767,149.15
  5. Step 5: Solve for x
    x = 367,767,149.15/21,707.92
  6. Step 6: Final answer
    x = 16,941.61

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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.