Home / 42,195.78-63,297.30-11,031

Finding the Fourth Proportional to 42,195.78, 63,297.30 and 11,031

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Solution

The fourth proportional to 42,195.78, 63,297.30 and 11,031 is: 16,547.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,195.78 : 63,297.30 = 11,031 : x
  2. Step 2: Convert to fraction form
    42,195.78/63,297.30 = 11,031/x
  3. Step 3: Cross multiply
    42,195.78x = 63,297.30 × 11,031
  4. Step 4: Simplify right side
    42,195.78x = 698,232,516.30
  5. Step 5: Solve for x
    x = 698,232,516.30/42,195.78
  6. Step 6: Final answer
    x = 16,547.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.