Home / 17,420.51-26,131.25-4,272.86

Finding the Fourth Proportional to 17,420.51, 26,131.25 and 4,272.86

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Solution

The fourth proportional to 17,420.51, 26,131.25 and 4,272.86 is: 6,409.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,420.51 : 26,131.25 = 4,272.86 : x
  2. Step 2: Convert to fraction form
    17,420.51/26,131.25 = 4,272.86/x
  3. Step 3: Cross multiply
    17,420.51x = 26,131.25 × 4,272.86
  4. Step 4: Simplify right side
    17,420.51x = 111,655,020.85
  5. Step 5: Solve for x
    x = 111,655,020.85/17,420.51
  6. Step 6: Final answer
    x = 6,409.40

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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.