Home / 20,412.01-28,166.40-11,460.50

Finding the Fourth Proportional to 20,412.01, 28,166.40 and 11,460.50

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Solution

The fourth proportional to 20,412.01, 28,166.40 and 11,460.50 is: 15,814.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,412.01 : 28,166.40 = 11,460.50 : x
  2. Step 2: Convert to fraction form
    20,412.01/28,166.40 = 11,460.50/x
  3. Step 3: Cross multiply
    20,412.01x = 28,166.40 × 11,460.50
  4. Step 4: Simplify right side
    20,412.01x = 322,800,991.99
  5. Step 5: Solve for x
    x = 322,800,991.99/20,412.01
  6. Step 6: Final answer
    x = 15,814.27

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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.