Home / 20,708.39-28,543.46-14,650.81

Finding the Fourth Proportional to 20,708.39, 28,543.46 and 14,650.81

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Solution

The fourth proportional to 20,708.39, 28,543.46 and 14,650.81 is: 20,193.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,708.39 : 28,543.46 = 14,650.81 : x
  2. Step 2: Convert to fraction form
    20,708.39/28,543.46 = 14,650.81/x
  3. Step 3: Cross multiply
    20,708.39x = 28,543.46 × 14,650.81
  4. Step 4: Simplify right side
    20,708.39x = 418,184,664.59
  5. Step 5: Solve for x
    x = 418,184,664.59/20,708.39
  6. Step 6: Final answer
    x = 20,193.97

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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.