Home / 36,689.13-50,631.21-20,775.06

Finding the Fourth Proportional to 36,689.13, 50,631.21 and 20,775.06

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Solution

The fourth proportional to 36,689.13, 50,631.21 and 20,775.06 is: 28,669.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,689.13 : 50,631.21 = 20,775.06 : x
  2. Step 2: Convert to fraction form
    36,689.13/50,631.21 = 20,775.06/x
  3. Step 3: Cross multiply
    36,689.13x = 50,631.21 × 20,775.06
  4. Step 4: Simplify right side
    36,689.13x = 1,051,866,425.62
  5. Step 5: Solve for x
    x = 1,051,866,425.62/36,689.13
  6. Step 6: Final answer
    x = 28,669.70

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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.