Home / 28,725.69-43,088.59-9,005.79

Finding the Fourth Proportional to 28,725.69, 43,088.59 and 9,005.79

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Solution

The fourth proportional to 28,725.69, 43,088.59 and 9,005.79 is: 13,508.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,725.69 : 43,088.59 = 9,005.79 : x
  2. Step 2: Convert to fraction form
    28,725.69/43,088.59 = 9,005.79/x
  3. Step 3: Cross multiply
    28,725.69x = 43,088.59 × 9,005.79
  4. Step 4: Simplify right side
    28,725.69x = 388,046,723.40
  5. Step 5: Solve for x
    x = 388,046,723.40/28,725.69
  6. Step 6: Final answer
    x = 13,508.70

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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.