Home / 19,005.76-28,513.50-15,341.32

Finding the Fourth Proportional to 19,005.76, 28,513.50 and 15,341.32

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Solution

The fourth proportional to 19,005.76, 28,513.50 and 15,341.32 is: 23,015.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,005.76 : 28,513.50 = 15,341.32 : x
  2. Step 2: Convert to fraction form
    19,005.76/28,513.50 = 15,341.32/x
  3. Step 3: Cross multiply
    19,005.76x = 28,513.50 × 15,341.32
  4. Step 4: Simplify right side
    19,005.76x = 437,434,727.82
  5. Step 5: Solve for x
    x = 437,434,727.82/19,005.76
  6. Step 6: Final answer
    x = 23,015.90

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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.