Home / 18,970.20-26,197.83-15,645.96

Finding the Fourth Proportional to 18,970.20, 26,197.83 and 15,645.96

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Solution

The fourth proportional to 18,970.20, 26,197.83 and 15,645.96 is: 21,607.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,970.20 : 26,197.83 = 15,645.96 : x
  2. Step 2: Convert to fraction form
    18,970.20/26,197.83 = 15,645.96/x
  3. Step 3: Cross multiply
    18,970.20x = 26,197.83 × 15,645.96
  4. Step 4: Simplify right side
    18,970.20x = 409,890,200.27
  5. Step 5: Solve for x
    x = 409,890,200.27/18,970.20
  6. Step 6: Final answer
    x = 21,607.06

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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.