Home / 28,989.28-40,005.68-22,623.04

Finding the Fourth Proportional to 28,989.28, 40,005.68 and 22,623.04

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Solution

The fourth proportional to 28,989.28, 40,005.68 and 22,623.04 is: 31,220.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,989.28 : 40,005.68 = 22,623.04 : x
  2. Step 2: Convert to fraction form
    28,989.28/40,005.68 = 22,623.04/x
  3. Step 3: Cross multiply
    28,989.28x = 40,005.68 × 22,623.04
  4. Step 4: Simplify right side
    28,989.28x = 905,050,098.87
  5. Step 5: Solve for x
    x = 905,050,098.87/28,989.28
  6. Step 6: Final answer
    x = 31,220.16

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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.