Home / 38,389.09-52,974.75-21,158.03

Finding the Fourth Proportional to 38,389.09, 52,974.75 and 21,158.03

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Solution

The fourth proportional to 38,389.09, 52,974.75 and 21,158.03 is: 29,196.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,389.09 : 52,974.75 = 21,158.03 : x
  2. Step 2: Convert to fraction form
    38,389.09/52,974.75 = 21,158.03/x
  3. Step 3: Cross multiply
    38,389.09x = 52,974.75 × 21,158.03
  4. Step 4: Simplify right side
    38,389.09x = 1,120,840,979.08
  5. Step 5: Solve for x
    x = 1,120,840,979.08/38,389.09
  6. Step 6: Final answer
    x = 29,196.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.