Home / 20,019.47-29,966.90-12,608.35

Finding the Fourth Proportional to 20,019.47, 29,966.90 and 12,608.35

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Solution

The fourth proportional to 20,019.47, 29,966.90 and 12,608.35 is: 18,873.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,019.47 : 29,966.90 = 12,608.35 : x
  2. Step 2: Convert to fraction form
    20,019.47/29,966.90 = 12,608.35/x
  3. Step 3: Cross multiply
    20,019.47x = 29,966.90 × 12,608.35
  4. Step 4: Simplify right side
    20,019.47x = 377,833,025.66
  5. Step 5: Solve for x
    x = 377,833,025.66/20,019.47
  6. Step 6: Final answer
    x = 18,873.28

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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.