Home / 20,718.60-31,043.34-14,551.56

Finding the Fourth Proportional to 20,718.60, 31,043.34 and 14,551.56

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Solution

The fourth proportional to 20,718.60, 31,043.34 and 14,551.56 is: 21,803.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,718.60 : 31,043.34 = 14,551.56 : x
  2. Step 2: Convert to fraction form
    20,718.60/31,043.34 = 14,551.56/x
  3. Step 3: Cross multiply
    20,718.60x = 31,043.34 × 14,551.56
  4. Step 4: Simplify right side
    20,718.60x = 451,729,024.61
  5. Step 5: Solve for x
    x = 451,729,024.61/20,718.60
  6. Step 6: Final answer
    x = 21,803.07

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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.