Home / 14,320.08-21,477.78-3,929.40

Finding the Fourth Proportional to 14,320.08, 21,477.78 and 3,929.40

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Solution

The fourth proportional to 14,320.08, 21,477.78 and 3,929.40 is: 5,893.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,320.08 : 21,477.78 = 3,929.40 : x
  2. Step 2: Convert to fraction form
    14,320.08/21,477.78 = 3,929.40/x
  3. Step 3: Cross multiply
    14,320.08x = 21,477.78 × 3,929.40
  4. Step 4: Simplify right side
    14,320.08x = 84,394,788.73
  5. Step 5: Solve for x
    x = 84,394,788.73/14,320.08
  6. Step 6: Final answer
    x = 5,893.46

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1.5x scale

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.