Home / 14,340.28-21,513.45-4,480.30

Finding the Fourth Proportional to 14,340.28, 21,513.45 and 4,480.30

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Solution

The fourth proportional to 14,340.28, 21,513.45 and 4,480.30 is: 6,721.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,340.28 : 21,513.45 = 4,480.30 : x
  2. Step 2: Convert to fraction form
    14,340.28/21,513.45 = 4,480.30/x
  3. Step 3: Cross multiply
    14,340.28x = 21,513.45 × 4,480.30
  4. Step 4: Simplify right side
    14,340.28x = 96,386,664.65
  5. Step 5: Solve for x
    x = 96,386,664.65/14,340.28
  6. Step 6: Final answer
    x = 6,721.40

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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.