Home / 31,220.21-43,088.97-23,207.08

Finding the Fourth Proportional to 31,220.21, 43,088.97 and 23,207.08

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Solution

The fourth proportional to 31,220.21, 43,088.97 and 23,207.08 is: 32,029.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,220.21 : 43,088.97 = 23,207.08 : x
  2. Step 2: Convert to fraction form
    31,220.21/43,088.97 = 23,207.08/x
  3. Step 3: Cross multiply
    31,220.21x = 43,088.97 × 23,207.08
  4. Step 4: Simplify right side
    31,220.21x = 999,969,153.21
  5. Step 5: Solve for x
    x = 999,969,153.21/31,220.21
  6. Step 6: Final answer
    x = 32,029.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.