Home / 21,964.15-32,968.10-12,108.07

Finding the Fourth Proportional to 21,964.15, 32,968.10 and 12,108.07

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Solution

The fourth proportional to 21,964.15, 32,968.10 and 12,108.07 is: 18,174.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,964.15 : 32,968.10 = 12,108.07 : x
  2. Step 2: Convert to fraction form
    21,964.15/32,968.10 = 12,108.07/x
  3. Step 3: Cross multiply
    21,964.15x = 32,968.10 × 12,108.07
  4. Step 4: Simplify right side
    21,964.15x = 399,180,062.57
  5. Step 5: Solve for x
    x = 399,180,062.57/21,964.15
  6. Step 6: Final answer
    x = 18,174.16

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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.