Home / 31,376.40-43,300.32-17,230.12

Finding the Fourth Proportional to 31,376.40, 43,300.32 and 17,230.12

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Solution

The fourth proportional to 31,376.40, 43,300.32 and 17,230.12 is: 23,778.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,376.40 : 43,300.32 = 17,230.12 : x
  2. Step 2: Convert to fraction form
    31,376.40/43,300.32 = 17,230.12/x
  3. Step 3: Cross multiply
    31,376.40x = 43,300.32 × 17,230.12
  4. Step 4: Simplify right side
    31,376.40x = 746,069,709.64
  5. Step 5: Solve for x
    x = 746,069,709.64/31,376.40
  6. Step 6: Final answer
    x = 23,778.05

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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.