Home / 21,370.20-29,471.70-17,796.97

Finding the Fourth Proportional to 21,370.20, 29,471.70 and 17,796.97

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Solution

The fourth proportional to 21,370.20, 29,471.70 and 17,796.97 is: 24,543.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,370.20 : 29,471.70 = 17,796.97 : x
  2. Step 2: Convert to fraction form
    21,370.20/29,471.70 = 17,796.97/x
  3. Step 3: Cross multiply
    21,370.20x = 29,471.70 × 17,796.97
  4. Step 4: Simplify right side
    21,370.20x = 524,506,798.44
  5. Step 5: Solve for x
    x = 524,506,798.44/21,370.20
  6. Step 6: Final answer
    x = 24,543.84

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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.