Home / 26,667.60-36,836.40-20,456.64

Finding the Fourth Proportional to 26,667.60, 36,836.40 and 20,456.64

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Solution

The fourth proportional to 26,667.60, 36,836.40 and 20,456.64 is: 28,257.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,667.60 : 36,836.40 = 20,456.64 : x
  2. Step 2: Convert to fraction form
    26,667.60/36,836.40 = 20,456.64/x
  3. Step 3: Cross multiply
    26,667.60x = 36,836.40 × 20,456.64
  4. Step 4: Simplify right side
    26,667.60x = 753,548,973.70
  5. Step 5: Solve for x
    x = 753,548,973.70/26,667.60
  6. Step 6: Final answer
    x = 28,257.10

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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.