Home / 31,069.09-42,875.84-16,921.94

Finding the Fourth Proportional to 31,069.09, 42,875.84 and 16,921.94

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Solution

The fourth proportional to 31,069.09, 42,875.84 and 16,921.94 is: 23,352.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,069.09 : 42,875.84 = 16,921.94 : x
  2. Step 2: Convert to fraction form
    31,069.09/42,875.84 = 16,921.94/x
  3. Step 3: Cross multiply
    31,069.09x = 42,875.84 × 16,921.94
  4. Step 4: Simplify right side
    31,069.09x = 725,542,177.55
  5. Step 5: Solve for x
    x = 725,542,177.55/31,069.09
  6. Step 6: Final answer
    x = 23,352.54

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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.