Home / 20,216.40-30,332.25-7,070.10

Finding the Fourth Proportional to 20,216.40, 30,332.25 and 7,070.10

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Solution

The fourth proportional to 20,216.40, 30,332.25 and 7,070.10 is: 10,607.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,216.40 : 30,332.25 = 7,070.10 : x
  2. Step 2: Convert to fraction form
    20,216.40/30,332.25 = 7,070.10/x
  3. Step 3: Cross multiply
    20,216.40x = 30,332.25 × 7,070.10
  4. Step 4: Simplify right side
    20,216.40x = 214,452,040.73
  5. Step 5: Solve for x
    x = 214,452,040.73/20,216.40
  6. Step 6: Final answer
    x = 10,607.83

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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.