Home / 21,613.25-32,419.87-16,690.07

Finding the Fourth Proportional to 21,613.25, 32,419.87 and 16,690.07

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Solution

The fourth proportional to 21,613.25, 32,419.87 and 16,690.07 is: 25,035.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,613.25 : 32,419.87 = 16,690.07 : x
  2. Step 2: Convert to fraction form
    21,613.25/32,419.87 = 16,690.07/x
  3. Step 3: Cross multiply
    21,613.25x = 32,419.87 × 16,690.07
  4. Step 4: Simplify right side
    21,613.25x = 541,089,695.87
  5. Step 5: Solve for x
    x = 541,089,695.87/21,613.25
  6. Step 6: Final answer
    x = 25,035.10

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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.