Home / 21,360.88-29,263.92-20,562.24

Finding the Fourth Proportional to 21,360.88, 29,263.92 and 20,562.24

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Solution

The fourth proportional to 21,360.88, 29,263.92 and 20,562.24 is: 28,169.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,360.88 : 29,263.92 = 20,562.24 : x
  2. Step 2: Convert to fraction form
    21,360.88/29,263.92 = 20,562.24/x
  3. Step 3: Cross multiply
    21,360.88x = 29,263.92 × 20,562.24
  4. Step 4: Simplify right side
    21,360.88x = 601,731,643.57
  5. Step 5: Solve for x
    x = 601,731,643.57/21,360.88
  6. Step 6: Final answer
    x = 28,169.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.