Home / 30,936.80-42,692.76-17,507.81

Finding the Fourth Proportional to 30,936.80, 42,692.76 and 17,507.81

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Solution

The fourth proportional to 30,936.80, 42,692.76 and 17,507.81 is: 24,160.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,936.80 : 42,692.76 = 17,507.81 : x
  2. Step 2: Convert to fraction form
    30,936.80/42,692.76 = 17,507.81/x
  3. Step 3: Cross multiply
    30,936.80x = 42,692.76 × 17,507.81
  4. Step 4: Simplify right side
    30,936.80x = 747,456,837.19
  5. Step 5: Solve for x
    x = 747,456,837.19/30,936.80
  6. Step 6: Final answer
    x = 24,160.77

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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.