Home / 15,278.42-22,919.69-14,355.80

Finding the Fourth Proportional to 15,278.42, 22,919.69 and 14,355.80

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Solution

The fourth proportional to 15,278.42, 22,919.69 and 14,355.80 is: 21,535.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,278.42 : 22,919.69 = 14,355.80 : x
  2. Step 2: Convert to fraction form
    15,278.42/22,919.69 = 14,355.80/x
  3. Step 3: Cross multiply
    15,278.42x = 22,919.69 × 14,355.80
  4. Step 4: Simplify right side
    15,278.42x = 329,030,492.94
  5. Step 5: Solve for x
    x = 329,030,492.94/15,278.42
  6. Step 6: Final answer
    x = 21,535.63

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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.