Home / 20,708.06-28,582.27-12,757.10

Finding the Fourth Proportional to 20,708.06, 28,582.27 and 12,757.10

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Solution

The fourth proportional to 20,708.06, 28,582.27 and 12,757.10 is: 17,607.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,708.06 : 28,582.27 = 12,757.10 : x
  2. Step 2: Convert to fraction form
    20,708.06/28,582.27 = 12,757.10/x
  3. Step 3: Cross multiply
    20,708.06x = 28,582.27 × 12,757.10
  4. Step 4: Simplify right side
    20,708.06x = 364,626,701.81
  5. Step 5: Solve for x
    x = 364,626,701.81/20,708.06
  6. Step 6: Final answer
    x = 17,607.96

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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.