Home / 20,830.67-28,716.41-14,851.97

Finding the Fourth Proportional to 20,830.67, 28,716.41 and 14,851.97

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Solution

The fourth proportional to 20,830.67, 28,716.41 and 14,851.97 is: 20,474.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,830.67 : 28,716.41 = 14,851.97 : x
  2. Step 2: Convert to fraction form
    20,830.67/28,716.41 = 14,851.97/x
  3. Step 3: Cross multiply
    20,830.67x = 28,716.41 × 14,851.97
  4. Step 4: Simplify right side
    20,830.67x = 426,495,041.99
  5. Step 5: Solve for x
    x = 426,495,041.99/20,830.67
  6. Step 6: Final answer
    x = 20,474.38

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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.