Home / 20,669.08-28,527.86-13,596.20

Finding the Fourth Proportional to 20,669.08, 28,527.86 and 13,596.20

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Solution

The fourth proportional to 20,669.08, 28,527.86 and 13,596.20 is: 18,765.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,669.08 : 28,527.86 = 13,596.20 : x
  2. Step 2: Convert to fraction form
    20,669.08/28,527.86 = 13,596.20/x
  3. Step 3: Cross multiply
    20,669.08x = 28,527.86 × 13,596.20
  4. Step 4: Simplify right side
    20,669.08x = 387,870,490.13
  5. Step 5: Solve for x
    x = 387,870,490.13/20,669.08
  6. Step 6: Final answer
    x = 18,765.74

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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.