Home / 19,363.20-26,734-14,878.80

Finding the Fourth Proportional to 19,363.20, 26,734 and 14,878.80

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Solution

The fourth proportional to 19,363.20, 26,734 and 14,878.80 is: 20,542.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,363.20 : 26,734 = 14,878.80 : x
  2. Step 2: Convert to fraction form
    19,363.20/26,734 = 14,878.80/x
  3. Step 3: Cross multiply
    19,363.20x = 26,734 × 14,878.80
  4. Step 4: Simplify right side
    19,363.20x = 397,769,839.20
  5. Step 5: Solve for x
    x = 397,769,839.20/19,363.20
  6. Step 6: Final answer
    x = 20,542.57

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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.