Home / 20,773.52-28,667.08-11,342.96

Finding the Fourth Proportional to 20,773.52, 28,667.08 and 11,342.96

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Solution

The fourth proportional to 20,773.52, 28,667.08 and 11,342.96 is: 15,653.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,773.52 : 28,667.08 = 11,342.96 : x
  2. Step 2: Convert to fraction form
    20,773.52/28,667.08 = 11,342.96/x
  3. Step 3: Cross multiply
    20,773.52x = 28,667.08 × 11,342.96
  4. Step 4: Simplify right side
    20,773.52x = 325,169,541.76
  5. Step 5: Solve for x
    x = 325,169,541.76/20,773.52
  6. Step 6: Final answer
    x = 15,653.08

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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.