Home / 16,912.35-25,338.42-14,421.90

Finding the Fourth Proportional to 16,912.35, 25,338.42 and 14,421.90

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Solution

The fourth proportional to 16,912.35, 25,338.42 and 14,421.90 is: 21,607.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,912.35 : 25,338.42 = 14,421.90 : x
  2. Step 2: Convert to fraction form
    16,912.35/25,338.42 = 14,421.90/x
  3. Step 3: Cross multiply
    16,912.35x = 25,338.42 × 14,421.90
  4. Step 4: Simplify right side
    16,912.35x = 365,428,159.40
  5. Step 5: Solve for x
    x = 365,428,159.40/16,912.35
  6. Step 6: Final answer
    x = 21,607.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.