Home / 21,098.35-31,619.84-15,525.60

Finding the Fourth Proportional to 21,098.35, 31,619.84 and 15,525.60

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Solution

The fourth proportional to 21,098.35, 31,619.84 and 15,525.60 is: 23,268.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,098.35 : 31,619.84 = 15,525.60 : x
  2. Step 2: Convert to fraction form
    21,098.35/31,619.84 = 15,525.60/x
  3. Step 3: Cross multiply
    21,098.35x = 31,619.84 × 15,525.60
  4. Step 4: Simplify right side
    21,098.35x = 490,916,987.90
  5. Step 5: Solve for x
    x = 490,916,987.90/21,098.35
  6. Step 6: Final answer
    x = 23,268.03

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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.