Home / 19,669.20-29,455.20-13,059.60

Finding the Fourth Proportional to 19,669.20, 29,455.20 and 13,059.60

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Solution

The fourth proportional to 19,669.20, 29,455.20 and 13,059.60 is: 19,557.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,669.20 : 29,455.20 = 13,059.60 : x
  2. Step 2: Convert to fraction form
    19,669.20/29,455.20 = 13,059.60/x
  3. Step 3: Cross multiply
    19,669.20x = 29,455.20 × 13,059.60
  4. Step 4: Simplify right side
    19,669.20x = 384,673,129.92
  5. Step 5: Solve for x
    x = 384,673,129.92/19,669.20
  6. Step 6: Final answer
    x = 19,557.13

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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.