Home / 21,821.00-32,686.08-13,884.19

Finding the Fourth Proportional to 21,821.00, 32,686.08 and 13,884.19

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Solution

The fourth proportional to 21,821.00, 32,686.08 and 13,884.19 is: 20,797.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,821.00 : 32,686.08 = 13,884.19 : x
  2. Step 2: Convert to fraction form
    21,821.00/32,686.08 = 13,884.19/x
  3. Step 3: Cross multiply
    21,821.00x = 32,686.08 × 13,884.19
  4. Step 4: Simplify right side
    21,821.00x = 453,819,795.15
  5. Step 5: Solve for x
    x = 453,819,795.15/21,821.00
  6. Step 6: Final answer
    x = 20,797.39

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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.