Home / 20,412.45-28,165.59-11,460.33

Finding the Fourth Proportional to 20,412.45, 28,165.59 and 11,460.33

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Solution

The fourth proportional to 20,412.45, 28,165.59 and 11,460.33 is: 15,813.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,412.45 : 28,165.59 = 11,460.33 : x
  2. Step 2: Convert to fraction form
    20,412.45/28,165.59 = 11,460.33/x
  3. Step 3: Cross multiply
    20,412.45x = 28,165.59 × 11,460.33
  4. Step 4: Simplify right side
    20,412.45x = 322,786,956.04
  5. Step 5: Solve for x
    x = 322,786,956.04/20,412.45
  6. Step 6: Final answer
    x = 15,813.24

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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.