Home / 19,988.09-29,979.40-5,950.28

Finding the Fourth Proportional to 19,988.09, 29,979.40 and 5,950.28

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Solution

The fourth proportional to 19,988.09, 29,979.40 and 5,950.28 is: 8,924.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,988.09 : 29,979.40 = 5,950.28 : x
  2. Step 2: Convert to fraction form
    19,988.09/29,979.40 = 5,950.28/x
  3. Step 3: Cross multiply
    19,988.09x = 29,979.40 × 5,950.28
  4. Step 4: Simplify right side
    19,988.09x = 178,385,794.48
  5. Step 5: Solve for x
    x = 178,385,794.48/19,988.09
  6. Step 6: Final answer
    x = 8,924.61

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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.