Home / 30,727.67-42,394.34-18,149.99

Finding the Fourth Proportional to 30,727.67, 42,394.34 and 18,149.99

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Solution

The fourth proportional to 30,727.67, 42,394.34 and 18,149.99 is: 25,041.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,727.67 : 42,394.34 = 18,149.99 : x
  2. Step 2: Convert to fraction form
    30,727.67/42,394.34 = 18,149.99/x
  3. Step 3: Cross multiply
    30,727.67x = 42,394.34 × 18,149.99
  4. Step 4: Simplify right side
    30,727.67x = 769,456,756.31
  5. Step 5: Solve for x
    x = 769,456,756.31/30,727.67
  6. Step 6: Final answer
    x = 25,041.17

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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.