Home / 20,458.08-30,687.84-13,528.80

Finding the Fourth Proportional to 20,458.08, 30,687.84 and 13,528.80

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Solution

The fourth proportional to 20,458.08, 30,687.84 and 13,528.80 is: 20,293.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,458.08 : 30,687.84 = 13,528.80 : x
  2. Step 2: Convert to fraction form
    20,458.08/30,687.84 = 13,528.80/x
  3. Step 3: Cross multiply
    20,458.08x = 30,687.84 × 13,528.80
  4. Step 4: Simplify right side
    20,458.08x = 415,169,649.79
  5. Step 5: Solve for x
    x = 415,169,649.79/20,458.08
  6. Step 6: Final answer
    x = 20,293.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.