Home / 20,077.60-27,711.72-13,363.50

Finding the Fourth Proportional to 20,077.60, 27,711.72 and 13,363.50

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Solution

The fourth proportional to 20,077.60, 27,711.72 and 13,363.50 is: 18,444.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,077.60 : 27,711.72 = 13,363.50 : x
  2. Step 2: Convert to fraction form
    20,077.60/27,711.72 = 13,363.50/x
  3. Step 3: Cross multiply
    20,077.60x = 27,711.72 × 13,363.50
  4. Step 4: Simplify right side
    20,077.60x = 370,325,570.22
  5. Step 5: Solve for x
    x = 370,325,570.22/20,077.60
  6. Step 6: Final answer
    x = 18,444.71

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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.