Home / 31,416.40-43,362.08-17,995.38

Finding the Fourth Proportional to 31,416.40, 43,362.08 and 17,995.38

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Solution

The fourth proportional to 31,416.40, 43,362.08 and 17,995.38 is: 24,837.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,416.40 : 43,362.08 = 17,995.38 : x
  2. Step 2: Convert to fraction form
    31,416.40/43,362.08 = 17,995.38/x
  3. Step 3: Cross multiply
    31,416.40x = 43,362.08 × 17,995.38
  4. Step 4: Simplify right side
    31,416.40x = 780,317,107.19
  5. Step 5: Solve for x
    x = 780,317,107.19/31,416.40
  6. Step 6: Final answer
    x = 24,837.89

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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.