Home / 14,420-21,632.34-5,650.16

Finding the Fourth Proportional to 14,420, 21,632.34 and 5,650.16

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Solution

The fourth proportional to 14,420, 21,632.34 and 5,650.16 is: 8,476.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,420 : 21,632.34 = 5,650.16 : x
  2. Step 2: Convert to fraction form
    14,420/21,632.34 = 5,650.16/x
  3. Step 3: Cross multiply
    14,420x = 21,632.34 × 5,650.16
  4. Step 4: Simplify right side
    14,420x = 122,226,182.17
  5. Step 5: Solve for x
    x = 122,226,182.17/14,420
  6. Step 6: Final answer
    x = 8,476.16

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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.