Home / 20,934.81-28,860.17-14,964.30

Finding the Fourth Proportional to 20,934.81, 28,860.17 and 14,964.30

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Solution

The fourth proportional to 20,934.81, 28,860.17 and 14,964.30 is: 20,629.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,934.81 : 28,860.17 = 14,964.30 : x
  2. Step 2: Convert to fraction form
    20,934.81/28,860.17 = 14,964.30/x
  3. Step 3: Cross multiply
    20,934.81x = 28,860.17 × 14,964.30
  4. Step 4: Simplify right side
    20,934.81x = 431,872,167.11
  5. Step 5: Solve for x
    x = 431,872,167.11/20,934.81
  6. Step 6: Final answer
    x = 20,629.38

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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.