Home / 21,555.21-32,345.73-9,074.43

Finding the Fourth Proportional to 21,555.21, 32,345.73 and 9,074.43

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Solution

The fourth proportional to 21,555.21, 32,345.73 and 9,074.43 is: 13,617.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,555.21 : 32,345.73 = 9,074.43 : x
  2. Step 2: Convert to fraction form
    21,555.21/32,345.73 = 9,074.43/x
  3. Step 3: Cross multiply
    21,555.21x = 32,345.73 × 9,074.43
  4. Step 4: Simplify right side
    21,555.21x = 293,519,062.68
  5. Step 5: Solve for x
    x = 293,519,062.68/21,555.21
  6. Step 6: Final answer
    x = 13,617.08

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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.