Home / 31,749.66-47,621.15-13,031.68

Finding the Fourth Proportional to 31,749.66, 47,621.15 and 13,031.68

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Solution

The fourth proportional to 31,749.66, 47,621.15 and 13,031.68 is: 19,546.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,749.66 : 47,621.15 = 13,031.68 : x
  2. Step 2: Convert to fraction form
    31,749.66/47,621.15 = 13,031.68/x
  3. Step 3: Cross multiply
    31,749.66x = 47,621.15 × 13,031.68
  4. Step 4: Simplify right side
    31,749.66x = 620,583,588.03
  5. Step 5: Solve for x
    x = 620,583,588.03/31,749.66
  6. Step 6: Final answer
    x = 19,546.15

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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.