Home / 21,184.03-31,776.23-5,389.08

Finding the Fourth Proportional to 21,184.03, 31,776.23 and 5,389.08

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Solution

The fourth proportional to 21,184.03, 31,776.23 and 5,389.08 is: 8,083.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,184.03 : 31,776.23 = 5,389.08 : x
  2. Step 2: Convert to fraction form
    21,184.03/31,776.23 = 5,389.08/x
  3. Step 3: Cross multiply
    21,184.03x = 31,776.23 × 5,389.08
  4. Step 4: Simplify right side
    21,184.03x = 171,244,466.48
  5. Step 5: Solve for x
    x = 171,244,466.48/21,184.03
  6. Step 6: Final answer
    x = 8,083.66

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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.