Home / 30,170.27-45,270.50-13,542.19

Finding the Fourth Proportional to 30,170.27, 45,270.50 and 13,542.19

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Solution

The fourth proportional to 30,170.27, 45,270.50 and 13,542.19 is: 20,320.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,170.27 : 45,270.50 = 13,542.19 : x
  2. Step 2: Convert to fraction form
    30,170.27/45,270.50 = 13,542.19/x
  3. Step 3: Cross multiply
    30,170.27x = 45,270.50 × 13,542.19
  4. Step 4: Simplify right side
    30,170.27x = 613,061,531.51
  5. Step 5: Solve for x
    x = 613,061,531.51/30,170.27
  6. Step 6: Final answer
    x = 20,320.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.