Home / 21,000.72-31,494.96-17,293.80

Finding the Fourth Proportional to 21,000.72, 31,494.96 and 17,293.80

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Solution

The fourth proportional to 21,000.72, 31,494.96 and 17,293.80 is: 25,935.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,000.72 : 31,494.96 = 17,293.80 : x
  2. Step 2: Convert to fraction form
    21,000.72/31,494.96 = 17,293.80/x
  3. Step 3: Cross multiply
    21,000.72x = 31,494.96 × 17,293.80
  4. Step 4: Simplify right side
    21,000.72x = 544,667,539.25
  5. Step 5: Solve for x
    x = 544,667,539.25/21,000.72
  6. Step 6: Final answer
    x = 25,935.66

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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.