Home / 31,451.22-47,146.86-11,724.48

Finding the Fourth Proportional to 31,451.22, 47,146.86 and 11,724.48

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Solution

The fourth proportional to 31,451.22, 47,146.86 and 11,724.48 is: 17,575.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,451.22 : 47,146.86 = 11,724.48 : x
  2. Step 2: Convert to fraction form
    31,451.22/47,146.86 = 11,724.48/x
  3. Step 3: Cross multiply
    31,451.22x = 47,146.86 × 11,724.48
  4. Step 4: Simplify right side
    31,451.22x = 552,772,417.13
  5. Step 5: Solve for x
    x = 552,772,417.13/31,451.22
  6. Step 6: Final answer
    x = 17,575.55

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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.