Home / 21,069.60-31,606.20-6,277.56

Finding the Fourth Proportional to 21,069.60, 31,606.20 and 6,277.56

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Solution

The fourth proportional to 21,069.60, 31,606.20 and 6,277.56 is: 9,416.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,069.60 : 31,606.20 = 6,277.56 : x
  2. Step 2: Convert to fraction form
    21,069.60/31,606.20 = 6,277.56/x
  3. Step 3: Cross multiply
    21,069.60x = 31,606.20 × 6,277.56
  4. Step 4: Simplify right side
    21,069.60x = 198,409,816.87
  5. Step 5: Solve for x
    x = 198,409,816.87/21,069.60
  6. Step 6: Final answer
    x = 9,416.88

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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.