Home / 26,429.20-39,586.20-21,821.20

Finding the Fourth Proportional to 26,429.20, 39,586.20 and 21,821.20

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Solution

The fourth proportional to 26,429.20, 39,586.20 and 21,821.20 is: 32,684.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,429.20 : 39,586.20 = 21,821.20 : x
  2. Step 2: Convert to fraction form
    26,429.20/39,586.20 = 21,821.20/x
  3. Step 3: Cross multiply
    26,429.20x = 39,586.20 × 21,821.20
  4. Step 4: Simplify right side
    26,429.20x = 863,818,387.44
  5. Step 5: Solve for x
    x = 863,818,387.44/26,429.20
  6. Step 6: Final answer
    x = 32,684.24

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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.