Home / 19,226.92-28,820.58-13,948.78

Finding the Fourth Proportional to 19,226.92, 28,820.58 and 13,948.78

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Solution

The fourth proportional to 19,226.92, 28,820.58 and 13,948.78 is: 20,908.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,226.92 : 28,820.58 = 13,948.78 : x
  2. Step 2: Convert to fraction form
    19,226.92/28,820.58 = 13,948.78/x
  3. Step 3: Cross multiply
    19,226.92x = 28,820.58 × 13,948.78
  4. Step 4: Simplify right side
    19,226.92x = 402,011,929.89
  5. Step 5: Solve for x
    x = 402,011,929.89/19,226.92
  6. Step 6: Final answer
    x = 20,908.81

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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.