Home / 20,689.83-31,036.89-8,844.85

Finding the Fourth Proportional to 20,689.83, 31,036.89 and 8,844.85

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Solution

The fourth proportional to 20,689.83, 31,036.89 and 8,844.85 is: 13,268.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,689.83 : 31,036.89 = 8,844.85 : x
  2. Step 2: Convert to fraction form
    20,689.83/31,036.89 = 8,844.85/x
  3. Step 3: Cross multiply
    20,689.83x = 31,036.89 × 8,844.85
  4. Step 4: Simplify right side
    20,689.83x = 274,516,642.14
  5. Step 5: Solve for x
    x = 274,516,642.14/20,689.83
  6. Step 6: Final answer
    x = 13,268.19

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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.