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Finding the Fourth Proportional to 36,068.52, 49,780.18 and 21,916.20

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Solution

The fourth proportional to 36,068.52, 49,780.18 and 21,916.20 is: 30,247.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,068.52 : 49,780.18 = 21,916.20 : x
  2. Step 2: Convert to fraction form
    36,068.52/49,780.18 = 21,916.20/x
  3. Step 3: Cross multiply
    36,068.52x = 49,780.18 × 21,916.20
  4. Step 4: Simplify right side
    36,068.52x = 1,090,992,380.92
  5. Step 5: Solve for x
    x = 1,090,992,380.92/36,068.52
  6. Step 6: Final answer
    x = 30,247.77

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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.