Home / 20,723.86-28,597.86-11,770.18

Finding the Fourth Proportional to 20,723.86, 28,597.86 and 11,770.18

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Solution

The fourth proportional to 20,723.86, 28,597.86 and 11,770.18 is: 16,242.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723.86 : 28,597.86 = 11,770.18 : x
  2. Step 2: Convert to fraction form
    20,723.86/28,597.86 = 11,770.18/x
  3. Step 3: Cross multiply
    20,723.86x = 28,597.86 × 11,770.18
  4. Step 4: Simplify right side
    20,723.86x = 336,601,959.81
  5. Step 5: Solve for x
    x = 336,601,959.81/20,723.86
  6. Step 6: Final answer
    x = 16,242.24

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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.