Home / 20,830.37-28,716.01-14,851.66

Finding the Fourth Proportional to 20,830.37, 28,716.01 and 14,851.66

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Solution

The fourth proportional to 20,830.37, 28,716.01 and 14,851.66 is: 20,473.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,830.37 : 28,716.01 = 14,851.66 : x
  2. Step 2: Convert to fraction form
    20,830.37/28,716.01 = 14,851.66/x
  3. Step 3: Cross multiply
    20,830.37x = 28,716.01 × 14,851.66
  4. Step 4: Simplify right side
    20,830.37x = 426,480,289.59
  5. Step 5: Solve for x
    x = 426,480,289.59/20,830.37
  6. Step 6: Final answer
    x = 20,473.97

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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.