Home / 22,141.08-30,567.38-20,879.91

Finding the Fourth Proportional to 22,141.08, 30,567.38 and 20,879.91

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Solution

The fourth proportional to 22,141.08, 30,567.38 and 20,879.91 is: 28,826.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,141.08 : 30,567.38 = 20,879.91 : x
  2. Step 2: Convert to fraction form
    22,141.08/30,567.38 = 20,879.91/x
  3. Step 3: Cross multiply
    22,141.08x = 30,567.38 × 20,879.91
  4. Step 4: Simplify right side
    22,141.08x = 638,244,038.94
  5. Step 5: Solve for x
    x = 638,244,038.94/22,141.08
  6. Step 6: Final answer
    x = 28,826.24

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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.