Home / 20,510.01-30,790.53-14,309.46

Finding the Fourth Proportional to 20,510.01, 30,790.53 and 14,309.46

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Solution

The fourth proportional to 20,510.01, 30,790.53 and 14,309.46 is: 21,481.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,510.01 : 30,790.53 = 14,309.46 : x
  2. Step 2: Convert to fraction form
    20,510.01/30,790.53 = 14,309.46/x
  3. Step 3: Cross multiply
    20,510.01x = 30,790.53 × 14,309.46
  4. Step 4: Simplify right side
    20,510.01x = 440,595,857.41
  5. Step 5: Solve for x
    x = 440,595,857.41/20,510.01
  6. Step 6: Final answer
    x = 21,481.99

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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.