Home / 20,810.23-31,214.52-11,468.77

Finding the Fourth Proportional to 20,810.23, 31,214.52 and 11,468.77

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Solution

The fourth proportional to 20,810.23, 31,214.52 and 11,468.77 is: 17,202.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,810.23 : 31,214.52 = 11,468.77 : x
  2. Step 2: Convert to fraction form
    20,810.23/31,214.52 = 11,468.77/x
  3. Step 3: Cross multiply
    20,810.23x = 31,214.52 × 11,468.77
  4. Step 4: Simplify right side
    20,810.23x = 357,992,150.54
  5. Step 5: Solve for x
    x = 357,992,150.54/20,810.23
  6. Step 6: Final answer
    x = 17,202.70

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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.