Home / 30,427.92-41,993.64-17,856.72

Finding the Fourth Proportional to 30,427.92, 41,993.64 and 17,856.72

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Solution

The fourth proportional to 30,427.92, 41,993.64 and 17,856.72 is: 24,644.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,427.92 : 41,993.64 = 17,856.72 : x
  2. Step 2: Convert to fraction form
    30,427.92/41,993.64 = 17,856.72/x
  3. Step 3: Cross multiply
    30,427.92x = 41,993.64 × 17,856.72
  4. Step 4: Simplify right side
    30,427.92x = 749,868,671.26
  5. Step 5: Solve for x
    x = 749,868,671.26/30,427.92
  6. Step 6: Final answer
    x = 24,644.10

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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.