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Finding the Fourth Proportional to 36,535.40, 54,860.70 and 20,983.40

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Solution

The fourth proportional to 36,535.40, 54,860.70 and 20,983.40 is: 31,508.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,535.40 : 54,860.70 = 20,983.40 : x
  2. Step 2: Convert to fraction form
    36,535.40/54,860.70 = 20,983.40/x
  3. Step 3: Cross multiply
    36,535.40x = 54,860.70 × 20,983.40
  4. Step 4: Simplify right side
    36,535.40x = 1,151,164,012.38
  5. Step 5: Solve for x
    x = 1,151,164,012.38/36,535.40
  6. Step 6: Final answer
    x = 31,508.18

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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.