Home / 19,389.60-29,049.84-13,203.36

Finding the Fourth Proportional to 19,389.60, 29,049.84 and 13,203.36

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Solution

The fourth proportional to 19,389.60, 29,049.84 and 13,203.36 is: 19,781.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,389.60 : 29,049.84 = 13,203.36 : x
  2. Step 2: Convert to fraction form
    19,389.60/29,049.84 = 13,203.36/x
  3. Step 3: Cross multiply
    19,389.60x = 29,049.84 × 13,203.36
  4. Step 4: Simplify right side
    19,389.60x = 383,555,495.46
  5. Step 5: Solve for x
    x = 383,555,495.46/19,389.60
  6. Step 6: Final answer
    x = 19,781.51

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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.