Home / 19,768.35-27,280.29-10,815.84

Finding the Fourth Proportional to 19,768.35, 27,280.29 and 10,815.84

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Solution

The fourth proportional to 19,768.35, 27,280.29 and 10,815.84 is: 14,925.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,768.35 : 27,280.29 = 10,815.84 : x
  2. Step 2: Convert to fraction form
    19,768.35/27,280.29 = 10,815.84/x
  3. Step 3: Cross multiply
    19,768.35x = 27,280.29 × 10,815.84
  4. Step 4: Simplify right side
    19,768.35x = 295,059,251.79
  5. Step 5: Solve for x
    x = 295,059,251.79/19,768.35
  6. Step 6: Final answer
    x = 14,925.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.