Home / 30,139.20-41,590.28-16,709.66

Finding the Fourth Proportional to 30,139.20, 41,590.28 and 16,709.66

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Solution

The fourth proportional to 30,139.20, 41,590.28 and 16,709.66 is: 23,058.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,139.20 : 41,590.28 = 16,709.66 : x
  2. Step 2: Convert to fraction form
    30,139.20/41,590.28 = 16,709.66/x
  3. Step 3: Cross multiply
    30,139.20x = 41,590.28 × 16,709.66
  4. Step 4: Simplify right side
    30,139.20x = 694,959,438.10
  5. Step 5: Solve for x
    x = 694,959,438.10/30,139.20
  6. Step 6: Final answer
    x = 23,058.32

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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.