Home / 30,147.16-41,603.20-16,719.66

Finding the Fourth Proportional to 30,147.16, 41,603.20 and 16,719.66

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Solution

The fourth proportional to 30,147.16, 41,603.20 and 16,719.66 is: 23,073.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,147.16 : 41,603.20 = 16,719.66 : x
  2. Step 2: Convert to fraction form
    30,147.16/41,603.20 = 16,719.66/x
  3. Step 3: Cross multiply
    30,147.16x = 41,603.20 × 16,719.66
  4. Step 4: Simplify right side
    30,147.16x = 695,591,358.91
  5. Step 5: Solve for x
    x = 695,591,358.91/30,147.16
  6. Step 6: Final answer
    x = 23,073.20

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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.