Home / 30,839.64-42,558.99-16,692.78

Finding the Fourth Proportional to 30,839.64, 42,558.99 and 16,692.78

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Solution

The fourth proportional to 30,839.64, 42,558.99 and 16,692.78 is: 23,036.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,839.64 : 42,558.99 = 16,692.78 : x
  2. Step 2: Convert to fraction form
    30,839.64/42,558.99 = 16,692.78/x
  3. Step 3: Cross multiply
    30,839.64x = 42,558.99 × 16,692.78
  4. Step 4: Simplify right side
    30,839.64x = 710,427,857.09
  5. Step 5: Solve for x
    x = 710,427,857.09/30,839.64
  6. Step 6: Final answer
    x = 23,036.19

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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.