Home / 19,409.86-29,115.35-5,370.00

Finding the Fourth Proportional to 19,409.86, 29,115.35 and 5,370.00

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Solution

The fourth proportional to 19,409.86, 29,115.35 and 5,370.00 is: 8,055.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,409.86 : 29,115.35 = 5,370.00 : x
  2. Step 2: Convert to fraction form
    19,409.86/29,115.35 = 5,370.00/x
  3. Step 3: Cross multiply
    19,409.86x = 29,115.35 × 5,370.00
  4. Step 4: Simplify right side
    19,409.86x = 156,349,283.92
  5. Step 5: Solve for x
    x = 156,349,283.92/19,409.86
  6. Step 6: Final answer
    x = 8,055.15

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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.