Home / 19,929.04-29,819.75-12,474.10

Finding the Fourth Proportional to 19,929.04, 29,819.75 and 12,474.10

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Solution

The fourth proportional to 19,929.04, 29,819.75 and 12,474.10 is: 18,664.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.04 : 29,819.75 = 12,474.10 : x
  2. Step 2: Convert to fraction form
    19,929.04/29,819.75 = 12,474.10/x
  3. Step 3: Cross multiply
    19,929.04x = 29,819.75 × 12,474.10
  4. Step 4: Simplify right side
    19,929.04x = 371,974,518.38
  5. Step 5: Solve for x
    x = 371,974,518.38/19,929.04
  6. Step 6: Final answer
    x = 18,664.95

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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.