Home / 20,595.26-28,421.31-11,642.74

Finding the Fourth Proportional to 20,595.26, 28,421.31 and 11,642.74

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Solution

The fourth proportional to 20,595.26, 28,421.31 and 11,642.74 is: 16,066.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,595.26 : 28,421.31 = 11,642.74 : x
  2. Step 2: Convert to fraction form
    20,595.26/28,421.31 = 11,642.74/x
  3. Step 3: Cross multiply
    20,595.26x = 28,421.31 × 11,642.74
  4. Step 4: Simplify right side
    20,595.26x = 330,901,922.79
  5. Step 5: Solve for x
    x = 330,901,922.79/20,595.26
  6. Step 6: Final answer
    x = 16,066.90

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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.