Home / 20,595.29-28,422.72-11,643.62

Finding the Fourth Proportional to 20,595.29, 28,422.72 and 11,643.62

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Solution

The fourth proportional to 20,595.29, 28,422.72 and 11,643.62 is: 16,068.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,595.29 : 28,422.72 = 11,643.62 : x
  2. Step 2: Convert to fraction form
    20,595.29/28,422.72 = 11,643.62/x
  3. Step 3: Cross multiply
    20,595.29x = 28,422.72 × 11,643.62
  4. Step 4: Simplify right side
    20,595.29x = 330,943,481.50
  5. Step 5: Solve for x
    x = 330,943,481.50/20,595.29
  6. Step 6: Final answer
    x = 16,068.89

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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.