Home / 19,409.20-29,111.56-5,370.24

Finding the Fourth Proportional to 19,409.20, 29,111.56 and 5,370.24

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Solution

The fourth proportional to 19,409.20, 29,111.56 and 5,370.24 is: 8,054.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,409.20 : 29,111.56 = 5,370.24 : x
  2. Step 2: Convert to fraction form
    19,409.20/29,111.56 = 5,370.24/x
  3. Step 3: Cross multiply
    19,409.20x = 29,111.56 × 5,370.24
  4. Step 4: Simplify right side
    19,409.20x = 156,336,063.97
  5. Step 5: Solve for x
    x = 156,336,063.97/19,409.20
  6. Step 6: Final answer
    x = 8,054.74

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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.