Home / 30,387.50-41,936.39-17,816.30

Finding the Fourth Proportional to 30,387.50, 41,936.39 and 17,816.30

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Solution

The fourth proportional to 30,387.50, 41,936.39 and 17,816.30 is: 24,587.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,387.50 : 41,936.39 = 17,816.30 : x
  2. Step 2: Convert to fraction form
    30,387.50/41,936.39 = 17,816.30/x
  3. Step 3: Cross multiply
    30,387.50x = 41,936.39 × 17,816.30
  4. Step 4: Simplify right side
    30,387.50x = 747,151,305.16
  5. Step 5: Solve for x
    x = 747,151,305.16/30,387.50
  6. Step 6: Final answer
    x = 24,587.46

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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.