Home / 21,968.01-32,956.88-12,102.21

Finding the Fourth Proportional to 21,968.01, 32,956.88 and 12,102.21

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Solution

The fourth proportional to 21,968.01, 32,956.88 and 12,102.21 is: 18,155.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,968.01 : 32,956.88 = 12,102.21 : x
  2. Step 2: Convert to fraction form
    21,968.01/32,956.88 = 12,102.21/x
  3. Step 3: Cross multiply
    21,968.01x = 32,956.88 × 12,102.21
  4. Step 4: Simplify right side
    21,968.01x = 398,851,022.19
  5. Step 5: Solve for x
    x = 398,851,022.19/21,968.01
  6. Step 6: Final answer
    x = 18,155.99

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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.