Home / 20,586.13-28,410.09-11,633.42

Finding the Fourth Proportional to 20,586.13, 28,410.09 and 11,633.42

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Solution

The fourth proportional to 20,586.13, 28,410.09 and 11,633.42 is: 16,054.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,586.13 : 28,410.09 = 11,633.42 : x
  2. Step 2: Convert to fraction form
    20,586.13/28,410.09 = 11,633.42/x
  3. Step 3: Cross multiply
    20,586.13x = 28,410.09 × 11,633.42
  4. Step 4: Simplify right side
    20,586.13x = 330,506,509.21
  5. Step 5: Solve for x
    x = 330,506,509.21/20,586.13
  6. Step 6: Final answer
    x = 16,054.82

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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.