Home / 22,681.82-31,290.81-13,246.22

Finding the Fourth Proportional to 22,681.82, 31,290.81 and 13,246.22

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Solution

The fourth proportional to 22,681.82, 31,290.81 and 13,246.22 is: 18,273.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,681.82 : 31,290.81 = 13,246.22 : x
  2. Step 2: Convert to fraction form
    22,681.82/31,290.81 = 13,246.22/x
  3. Step 3: Cross multiply
    22,681.82x = 31,290.81 × 13,246.22
  4. Step 4: Simplify right side
    22,681.82x = 414,484,953.24
  5. Step 5: Solve for x
    x = 414,484,953.24/22,681.82
  6. Step 6: Final answer
    x = 18,273.88

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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.