Home / 31,788.63-47,673.81-13,065.48

Finding the Fourth Proportional to 31,788.63, 47,673.81 and 13,065.48

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Solution

The fourth proportional to 31,788.63, 47,673.81 and 13,065.48 is: 19,594.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,788.63 : 47,673.81 = 13,065.48 : x
  2. Step 2: Convert to fraction form
    31,788.63/47,673.81 = 13,065.48/x
  3. Step 3: Cross multiply
    31,788.63x = 47,673.81 × 13,065.48
  4. Step 4: Simplify right side
    31,788.63x = 622,881,211.08
  5. Step 5: Solve for x
    x = 622,881,211.08/31,788.63
  6. Step 6: Final answer
    x = 19,594.47

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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.