Home / 28,254.34-42,390.66-17,021.86

Finding the Fourth Proportional to 28,254.34, 42,390.66 and 17,021.86

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Solution

The fourth proportional to 28,254.34, 42,390.66 and 17,021.86 is: 25,538.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,254.34 : 42,390.66 = 17,021.86 : x
  2. Step 2: Convert to fraction form
    28,254.34/42,390.66 = 17,021.86/x
  3. Step 3: Cross multiply
    28,254.34x = 42,390.66 × 17,021.86
  4. Step 4: Simplify right side
    28,254.34x = 721,567,879.83
  5. Step 5: Solve for x
    x = 721,567,879.83/28,254.34
  6. Step 6: Final answer
    x = 25,538.30

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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.