Home / 39,286.03-54,214.98-21,381.16

Finding the Fourth Proportional to 39,286.03, 54,214.98 and 21,381.16

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Solution

The fourth proportional to 39,286.03, 54,214.98 and 21,381.16 is: 29,506.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,286.03 : 54,214.98 = 21,381.16 : x
  2. Step 2: Convert to fraction form
    39,286.03/54,214.98 = 21,381.16/x
  3. Step 3: Cross multiply
    39,286.03x = 54,214.98 × 21,381.16
  4. Step 4: Simplify right side
    39,286.03x = 1,159,179,161.78
  5. Step 5: Solve for x
    x = 1,159,179,161.78/39,286.03
  6. Step 6: Final answer
    x = 29,506.14

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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.