Home / 28,725.28-43,088.46-9,003.40

Finding the Fourth Proportional to 28,725.28, 43,088.46 and 9,003.40

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Solution

The fourth proportional to 28,725.28, 43,088.46 and 9,003.40 is: 13,505.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,725.28 : 43,088.46 = 9,003.40 : x
  2. Step 2: Convert to fraction form
    28,725.28/43,088.46 = 9,003.40/x
  3. Step 3: Cross multiply
    28,725.28x = 43,088.46 × 9,003.40
  4. Step 4: Simplify right side
    28,725.28x = 387,942,640.76
  5. Step 5: Solve for x
    x = 387,942,640.76/28,725.28
  6. Step 6: Final answer
    x = 13,505.27

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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.