Home / 20,798.37-28,701.77-11,366.93

Finding the Fourth Proportional to 20,798.37, 28,701.77 and 11,366.93

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Solution

The fourth proportional to 20,798.37, 28,701.77 and 11,366.93 is: 15,686.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,798.37 : 28,701.77 = 11,366.93 : x
  2. Step 2: Convert to fraction form
    20,798.37/28,701.77 = 11,366.93/x
  3. Step 3: Cross multiply
    20,798.37x = 28,701.77 × 11,366.93
  4. Step 4: Simplify right side
    20,798.37x = 326,251,025.39
  5. Step 5: Solve for x
    x = 326,251,025.39/20,798.37
  6. Step 6: Final answer
    x = 15,686.37

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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.