Home / 20,410.62-28,165.89-11,458.63

Finding the Fourth Proportional to 20,410.62, 28,165.89 and 11,458.63

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Solution

The fourth proportional to 20,410.62, 28,165.89 and 11,458.63 is: 15,812.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,410.62 : 28,165.89 = 11,458.63 : x
  2. Step 2: Convert to fraction form
    20,410.62/28,165.89 = 11,458.63/x
  3. Step 3: Cross multiply
    20,410.62x = 28,165.89 × 11,458.63
  4. Step 4: Simplify right side
    20,410.62x = 322,742,512.13
  5. Step 5: Solve for x
    x = 322,742,512.13/20,410.62
  6. Step 6: Final answer
    x = 15,812.48

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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.