Home / 19,155.69-28,731.11-14,232.51

Finding the Fourth Proportional to 19,155.69, 28,731.11 and 14,232.51

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Solution

The fourth proportional to 19,155.69, 28,731.11 and 14,232.51 is: 21,346.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,155.69 : 28,731.11 = 14,232.51 : x
  2. Step 2: Convert to fraction form
    19,155.69/28,731.11 = 14,232.51/x
  3. Step 3: Cross multiply
    19,155.69x = 28,731.11 × 14,232.51
  4. Step 4: Simplify right side
    19,155.69x = 408,915,739.22
  5. Step 5: Solve for x
    x = 408,915,739.22/19,155.69
  6. Step 6: Final answer
    x = 21,346.96

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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.