Home / 20,798.12-28,701.41-11,366.68

Finding the Fourth Proportional to 20,798.12, 28,701.41 and 11,366.68

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Solution

The fourth proportional to 20,798.12, 28,701.41 and 11,366.68 is: 15,686.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,798.12 : 28,701.41 = 11,366.68 : x
  2. Step 2: Convert to fraction form
    20,798.12/28,701.41 = 11,366.68/x
  3. Step 3: Cross multiply
    20,798.12x = 28,701.41 × 11,366.68
  4. Step 4: Simplify right side
    20,798.12x = 326,239,743.02
  5. Step 5: Solve for x
    x = 326,239,743.02/20,798.12
  6. Step 6: Final answer
    x = 15,686.02

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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.