Home / 31,749.88-47,588.06-21,207.32

Finding the Fourth Proportional to 31,749.88, 47,588.06 and 21,207.32

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Solution

The fourth proportional to 31,749.88, 47,588.06 and 21,207.32 is: 31,786.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,749.88 : 47,588.06 = 21,207.32 : x
  2. Step 2: Convert to fraction form
    31,749.88/47,588.06 = 21,207.32/x
  3. Step 3: Cross multiply
    31,749.88x = 47,588.06 × 21,207.32
  4. Step 4: Simplify right side
    31,749.88x = 1,009,215,216.60
  5. Step 5: Solve for x
    x = 1,009,215,216.60/31,749.88
  6. Step 6: Final answer
    x = 31,786.43

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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.