Home / 20,421,489.06-28,182,245.49-11,254,722.30

Finding the Fourth Proportional to 20,421,489.06, 28,182,245.49 and 11,254,722.30

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Solution

The fourth proportional to 20,421,489.06, 28,182,245.49 and 11,254,722.30 is: 15,531,842.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,421,489.06 : 28,182,245.49 = 11,254,722.30 : x
  2. Step 2: Convert to fraction form
    20,421,489.06/28,182,245.49 = 11,254,722.30/x
  3. Step 3: Cross multiply
    20,421,489.06x = 28,182,245.49 × 11,254,722.30
  4. Step 4: Simplify right side
    20,421,489.06x = 317,183,346,780,377.44
  5. Step 5: Solve for x
    x = 317,183,346,780,377.44/20,421,489.06
  6. Step 6: Final answer
    x = 15,531,842.26

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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.