Home / 31,069.84-42,876.35-16,922.68

Finding the Fourth Proportional to 31,069.84, 42,876.35 and 16,922.68

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Solution

The fourth proportional to 31,069.84, 42,876.35 and 16,922.68 is: 23,353.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,069.84 : 42,876.35 = 16,922.68 : x
  2. Step 2: Convert to fraction form
    31,069.84/42,876.35 = 16,922.68/x
  3. Step 3: Cross multiply
    31,069.84x = 42,876.35 × 16,922.68
  4. Step 4: Simplify right side
    31,069.84x = 725,582,846.52
  5. Step 5: Solve for x
    x = 725,582,846.52/31,069.84
  6. Step 6: Final answer
    x = 23,353.29

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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.