Home / 14,020.48-21,031.04-4,787.20

Finding the Fourth Proportional to 14,020.48, 21,031.04 and 4,787.20

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Solution

The fourth proportional to 14,020.48, 21,031.04 and 4,787.20 is: 7,180.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,020.48 : 21,031.04 = 4,787.20 : x
  2. Step 2: Convert to fraction form
    14,020.48/21,031.04 = 4,787.20/x
  3. Step 3: Cross multiply
    14,020.48x = 21,031.04 × 4,787.20
  4. Step 4: Simplify right side
    14,020.48x = 100,679,794.69
  5. Step 5: Solve for x
    x = 100,679,794.69/14,020.48
  6. Step 6: Final answer
    x = 7,180.91

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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.