Home / 31,639.92-43,662-17,492.64

Finding the Fourth Proportional to 31,639.92, 43,662 and 17,492.64

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Solution

The fourth proportional to 31,639.92, 43,662 and 17,492.64 is: 24,139.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,639.92 : 43,662 = 17,492.64 : x
  2. Step 2: Convert to fraction form
    31,639.92/43,662 = 17,492.64/x
  3. Step 3: Cross multiply
    31,639.92x = 43,662 × 17,492.64
  4. Step 4: Simplify right side
    31,639.92x = 763,763,647.68
  5. Step 5: Solve for x
    x = 763,763,647.68/31,639.92
  6. Step 6: Final answer
    x = 24,139.24

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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.