Home / 31,649.83-43,663.57-18,217.87

Finding the Fourth Proportional to 31,649.83, 43,663.57 and 18,217.87

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Solution

The fourth proportional to 31,649.83, 43,663.57 and 18,217.87 is: 25,133.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,649.83 : 43,663.57 = 18,217.87 : x
  2. Step 2: Convert to fraction form
    31,649.83/43,663.57 = 18,217.87/x
  3. Step 3: Cross multiply
    31,649.83x = 43,663.57 × 18,217.87
  4. Step 4: Simplify right side
    31,649.83x = 795,457,242.00
  5. Step 5: Solve for x
    x = 795,457,242.00/31,649.83
  6. Step 6: Final answer
    x = 25,133.07

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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.