Home / 19,975.70-29,939.73-9,287.62

Finding the Fourth Proportional to 19,975.70, 29,939.73 and 9,287.62

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Solution

The fourth proportional to 19,975.70, 29,939.73 and 9,287.62 is: 13,920.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,975.70 : 29,939.73 = 9,287.62 : x
  2. Step 2: Convert to fraction form
    19,975.70/29,939.73 = 9,287.62/x
  3. Step 3: Cross multiply
    19,975.70x = 29,939.73 × 9,287.62
  4. Step 4: Simplify right side
    19,975.70x = 278,068,725.46
  5. Step 5: Solve for x
    x = 278,068,725.46/19,975.70
  6. Step 6: Final answer
    x = 13,920.35

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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.