Home / 30,149.51-41,603.57-16,720.71

Finding the Fourth Proportional to 30,149.51, 41,603.57 and 16,720.71

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Solution

The fourth proportional to 30,149.51, 41,603.57 and 16,720.71 is: 23,073.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,149.51 : 41,603.57 = 16,720.71 : x
  2. Step 2: Convert to fraction form
    30,149.51/41,603.57 = 16,720.71/x
  3. Step 3: Cross multiply
    30,149.51x = 41,603.57 × 16,720.71
  4. Step 4: Simplify right side
    30,149.51x = 695,641,145.33
  5. Step 5: Solve for x
    x = 695,641,145.33/30,149.51
  6. Step 6: Final answer
    x = 23,073.05

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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.