Home / 31,221.12-46,842.56-15,635.20

Finding the Fourth Proportional to 31,221.12, 46,842.56 and 15,635.20

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Solution

The fourth proportional to 31,221.12, 46,842.56 and 15,635.20 is: 23,458.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,221.12 : 46,842.56 = 15,635.20 : x
  2. Step 2: Convert to fraction form
    31,221.12/46,842.56 = 15,635.20/x
  3. Step 3: Cross multiply
    31,221.12x = 46,842.56 × 15,635.20
  4. Step 4: Simplify right side
    31,221.12x = 732,392,794.11
  5. Step 5: Solve for x
    x = 732,392,794.11/31,221.12
  6. Step 6: Final answer
    x = 23,458.25

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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.