Home / 19,979.24-29,973.79-5,939.21

Finding the Fourth Proportional to 19,979.24, 29,973.79 and 5,939.21

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Solution

The fourth proportional to 19,979.24, 29,973.79 and 5,939.21 is: 8,910.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,979.24 : 29,973.79 = 5,939.21 : x
  2. Step 2: Convert to fraction form
    19,979.24/29,973.79 = 5,939.21/x
  3. Step 3: Cross multiply
    19,979.24x = 29,973.79 × 5,939.21
  4. Step 4: Simplify right side
    19,979.24x = 178,020,612.19
  5. Step 5: Solve for x
    x = 178,020,612.19/19,979.24
  6. Step 6: Final answer
    x = 8,910.28

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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.