Home / 20,896.08-28,835.40-11,462.80

Finding the Fourth Proportional to 20,896.08, 28,835.40 and 11,462.80

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Solution

The fourth proportional to 20,896.08, 28,835.40 and 11,462.80 is: 15,818.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,896.08 : 28,835.40 = 11,462.80 : x
  2. Step 2: Convert to fraction form
    20,896.08/28,835.40 = 11,462.80/x
  3. Step 3: Cross multiply
    20,896.08x = 28,835.40 × 11,462.80
  4. Step 4: Simplify right side
    20,896.08x = 330,534,423.12
  5. Step 5: Solve for x
    x = 330,534,423.12/20,896.08
  6. Step 6: Final answer
    x = 15,818.01

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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.