Home / 19,088.79-28,609.64-13,841.81

Finding the Fourth Proportional to 19,088.79, 28,609.64 and 13,841.81

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Solution

The fourth proportional to 19,088.79, 28,609.64 and 13,841.81 is: 20,745.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,088.79 : 28,609.64 = 13,841.81 : x
  2. Step 2: Convert to fraction form
    19,088.79/28,609.64 = 13,841.81/x
  3. Step 3: Cross multiply
    19,088.79x = 28,609.64 × 13,841.81
  4. Step 4: Simplify right side
    19,088.79x = 396,009,201.05
  5. Step 5: Solve for x
    x = 396,009,201.05/19,088.79
  6. Step 6: Final answer
    x = 20,745.65

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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.