Home / 31,099.11-42,917.75-17,669.54

Finding the Fourth Proportional to 31,099.11, 42,917.75 and 17,669.54

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Solution

The fourth proportional to 31,099.11, 42,917.75 and 17,669.54 is: 24,384.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,099.11 : 42,917.75 = 17,669.54 : x
  2. Step 2: Convert to fraction form
    31,099.11/42,917.75 = 17,669.54/x
  3. Step 3: Cross multiply
    31,099.11x = 42,917.75 × 17,669.54
  4. Step 4: Simplify right side
    31,099.11x = 758,336,985.54
  5. Step 5: Solve for x
    x = 758,336,985.54/31,099.11
  6. Step 6: Final answer
    x = 24,384.53

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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.