Home / 19,486.20-29,229.30-13,265.40

Finding the Fourth Proportional to 19,486.20, 29,229.30 and 13,265.40

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Solution

The fourth proportional to 19,486.20, 29,229.30 and 13,265.40 is: 19,898.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,486.20 : 29,229.30 = 13,265.40 : x
  2. Step 2: Convert to fraction form
    19,486.20/29,229.30 = 13,265.40/x
  3. Step 3: Cross multiply
    19,486.20x = 29,229.30 × 13,265.40
  4. Step 4: Simplify right side
    19,486.20x = 387,738,356.22
  5. Step 5: Solve for x
    x = 387,738,356.22/19,486.20
  6. Step 6: Final answer
    x = 19,898.10

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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.