Home / 39,131.22-58,644.91-21,316.18

Finding the Fourth Proportional to 39,131.22, 58,644.91 and 21,316.18

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Solution

The fourth proportional to 39,131.22, 58,644.91 and 21,316.18 is: 31,945.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,131.22 : 58,644.91 = 21,316.18 : x
  2. Step 2: Convert to fraction form
    39,131.22/58,644.91 = 21,316.18/x
  3. Step 3: Cross multiply
    39,131.22x = 58,644.91 × 21,316.18
  4. Step 4: Simplify right side
    39,131.22x = 1,250,085,257.74
  5. Step 5: Solve for x
    x = 1,250,085,257.74/39,131.22
  6. Step 6: Final answer
    x = 31,945.98

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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.