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Finding the Fourth Proportional to 38,674.26, 58,065.26 and 19,967.78

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Solution

The fourth proportional to 38,674.26, 58,065.26 and 19,967.78 is: 29,979.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,674.26 : 58,065.26 = 19,967.78 : x
  2. Step 2: Convert to fraction form
    38,674.26/58,065.26 = 19,967.78/x
  3. Step 3: Cross multiply
    38,674.26x = 58,065.26 × 19,967.78
  4. Step 4: Simplify right side
    38,674.26x = 1,159,433,947.16
  5. Step 5: Solve for x
    x = 1,159,433,947.16/38,674.26
  6. Step 6: Final answer
    x = 29,979.47

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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.