Home / 20,953.08-31,422.90-9,266.04

Finding the Fourth Proportional to 20,953.08, 31,422.90 and 9,266.04

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Solution

The fourth proportional to 20,953.08, 31,422.90 and 9,266.04 is: 13,896.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,953.08 : 31,422.90 = 9,266.04 : x
  2. Step 2: Convert to fraction form
    20,953.08/31,422.90 = 9,266.04/x
  3. Step 3: Cross multiply
    20,953.08x = 31,422.90 × 9,266.04
  4. Step 4: Simplify right side
    20,953.08x = 291,165,848.32
  5. Step 5: Solve for x
    x = 291,165,848.32/20,953.08
  6. Step 6: Final answer
    x = 13,896.09

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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.