Home / 31,057.84-42,858.36-16,910.64

Finding the Fourth Proportional to 31,057.84, 42,858.36 and 16,910.64

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Solution

The fourth proportional to 31,057.84, 42,858.36 and 16,910.64 is: 23,335.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,057.84 : 42,858.36 = 16,910.64 : x
  2. Step 2: Convert to fraction form
    31,057.84/42,858.36 = 16,910.64/x
  3. Step 3: Cross multiply
    31,057.84x = 42,858.36 × 16,910.64
  4. Step 4: Simplify right side
    31,057.84x = 724,762,296.95
  5. Step 5: Solve for x
    x = 724,762,296.95/31,057.84
  6. Step 6: Final answer
    x = 23,335.89

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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.