Home / 31,582.80-47,346.66-11,856.06

Finding the Fourth Proportional to 31,582.80, 47,346.66 and 11,856.06

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Solution

The fourth proportional to 31,582.80, 47,346.66 and 11,856.06 is: 17,773.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,582.80 : 47,346.66 = 11,856.06 : x
  2. Step 2: Convert to fraction form
    31,582.80/47,346.66 = 11,856.06/x
  3. Step 3: Cross multiply
    31,582.80x = 47,346.66 × 11,856.06
  4. Step 4: Simplify right side
    31,582.80x = 561,344,841.76
  5. Step 5: Solve for x
    x = 561,344,841.76/31,582.80
  6. Step 6: Final answer
    x = 17,773.75

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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.