Home / 21,734.01-29,990.07-12,300.75

Finding the Fourth Proportional to 21,734.01, 29,990.07 and 12,300.75

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Solution

The fourth proportional to 21,734.01, 29,990.07 and 12,300.75 is: 16,973.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,734.01 : 29,990.07 = 12,300.75 : x
  2. Step 2: Convert to fraction form
    21,734.01/29,990.07 = 12,300.75/x
  3. Step 3: Cross multiply
    21,734.01x = 29,990.07 × 12,300.75
  4. Step 4: Simplify right side
    21,734.01x = 368,900,353.55
  5. Step 5: Solve for x
    x = 368,900,353.55/21,734.01
  6. Step 6: Final answer
    x = 16,973.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.