Home / 19,228.92-28,823.58-13,950.78

Finding the Fourth Proportional to 19,228.92, 28,823.58 and 13,950.78

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Solution

The fourth proportional to 19,228.92, 28,823.58 and 13,950.78 is: 20,911.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,228.92 : 28,823.58 = 13,950.78 : x
  2. Step 2: Convert to fraction form
    19,228.92/28,823.58 = 13,950.78/x
  3. Step 3: Cross multiply
    19,228.92x = 28,823.58 × 13,950.78
  4. Step 4: Simplify right side
    19,228.92x = 402,111,423.39
  5. Step 5: Solve for x
    x = 402,111,423.39/19,228.92
  6. Step 6: Final answer
    x = 20,911.80

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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.