Home / 20,072.20-30,011.10-14,823.40

Finding the Fourth Proportional to 20,072.20, 30,011.10 and 14,823.40

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Solution

The fourth proportional to 20,072.20, 30,011.10 and 14,823.40 is: 22,163.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.20 : 30,011.10 = 14,823.40 : x
  2. Step 2: Convert to fraction form
    20,072.20/30,011.10 = 14,823.40/x
  3. Step 3: Cross multiply
    20,072.20x = 30,011.10 × 14,823.40
  4. Step 4: Simplify right side
    20,072.20x = 444,866,539.74
  5. Step 5: Solve for x
    x = 444,866,539.74/20,072.20
  6. Step 6: Final answer
    x = 22,163.32

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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.