Home / 19,633.78-29,445.51-13,392.63

Finding the Fourth Proportional to 19,633.78, 29,445.51 and 13,392.63

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Solution

The fourth proportional to 19,633.78, 29,445.51 and 13,392.63 is: 20,085.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,633.78 : 29,445.51 = 13,392.63 : x
  2. Step 2: Convert to fraction form
    19,633.78/29,445.51 = 13,392.63/x
  3. Step 3: Cross multiply
    19,633.78x = 29,445.51 × 13,392.63
  4. Step 4: Simplify right side
    19,633.78x = 394,352,753.63
  5. Step 5: Solve for x
    x = 394,352,753.63/19,633.78
  6. Step 6: Final answer
    x = 20,085.42

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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.