Home / 21,958.74-30,306.69-14,880.42

Finding the Fourth Proportional to 21,958.74, 30,306.69 and 14,880.42

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Solution

The fourth proportional to 21,958.74, 30,306.69 and 14,880.42 is: 20,537.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,958.74 : 30,306.69 = 14,880.42 : x
  2. Step 2: Convert to fraction form
    21,958.74/30,306.69 = 14,880.42/x
  3. Step 3: Cross multiply
    21,958.74x = 30,306.69 × 14,880.42
  4. Step 4: Simplify right side
    21,958.74x = 450,976,276.01
  5. Step 5: Solve for x
    x = 450,976,276.01/21,958.74
  6. Step 6: Final answer
    x = 20,537.44

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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.