Home / 31,192.70-43,050.78-19,867.08

Finding the Fourth Proportional to 31,192.70, 43,050.78 and 19,867.08

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Solution

The fourth proportional to 31,192.70, 43,050.78 and 19,867.08 is: 27,419.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,192.70 : 43,050.78 = 19,867.08 : x
  2. Step 2: Convert to fraction form
    31,192.70/43,050.78 = 19,867.08/x
  3. Step 3: Cross multiply
    31,192.70x = 43,050.78 × 19,867.08
  4. Step 4: Simplify right side
    31,192.70x = 855,293,290.32
  5. Step 5: Solve for x
    x = 855,293,290.32/31,192.70
  6. Step 6: Final answer
    x = 27,419.67

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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.