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Finding the Fourth Proportional to 28,957.91, 43,409.12 and 9,223.68

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Solution

The fourth proportional to 28,957.91, 43,409.12 and 9,223.68 is: 13,826.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,957.91 : 43,409.12 = 9,223.68 : x
  2. Step 2: Convert to fraction form
    28,957.91/43,409.12 = 9,223.68/x
  3. Step 3: Cross multiply
    28,957.91x = 43,409.12 × 9,223.68
  4. Step 4: Simplify right side
    28,957.91x = 400,391,831.96
  5. Step 5: Solve for x
    x = 400,391,831.96/28,957.91
  6. Step 6: Final answer
    x = 13,826.68

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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.