Home / 30,143.88-41,599.06-16,715.70

Finding the Fourth Proportional to 30,143.88, 41,599.06 and 16,715.70

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Solution

The fourth proportional to 30,143.88, 41,599.06 and 16,715.70 is: 23,067.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,143.88 : 41,599.06 = 16,715.70 : x
  2. Step 2: Convert to fraction form
    30,143.88/41,599.06 = 16,715.70/x
  3. Step 3: Cross multiply
    30,143.88x = 41,599.06 × 16,715.70
  4. Step 4: Simplify right side
    30,143.88x = 695,357,407.24
  5. Step 5: Solve for x
    x = 695,357,407.24/30,143.88
  6. Step 6: Final answer
    x = 23,067.95

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Half scale
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Double scale
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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.