Home / 15,928.42-21,931-14,452.18

Finding the Fourth Proportional to 15,928.42, 21,931 and 14,452.18

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Solution

The fourth proportional to 15,928.42, 21,931 and 14,452.18 is: 19,898.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,928.42 : 21,931 = 14,452.18 : x
  2. Step 2: Convert to fraction form
    15,928.42/21,931 = 14,452.18/x
  3. Step 3: Cross multiply
    15,928.42x = 21,931 × 14,452.18
  4. Step 4: Simplify right side
    15,928.42x = 316,950,759.58
  5. Step 5: Solve for x
    x = 316,950,759.58/15,928.42
  6. Step 6: Final answer
    x = 19,898.44

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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.