Home / 31,645.19-43,664.46-18,217.01

Finding the Fourth Proportional to 31,645.19, 43,664.46 and 18,217.01

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Solution

The fourth proportional to 31,645.19, 43,664.46 and 18,217.01 is: 25,136.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,645.19 : 43,664.46 = 18,217.01 : x
  2. Step 2: Convert to fraction form
    31,645.19/43,664.46 = 18,217.01/x
  3. Step 3: Cross multiply
    31,645.19x = 43,664.46 × 18,217.01
  4. Step 4: Simplify right side
    31,645.19x = 795,435,904.46
  5. Step 5: Solve for x
    x = 795,435,904.46/31,645.19
  6. Step 6: Final answer
    x = 25,136.08

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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.