Home / 28,502.28-42,695.10-16,779.96

Finding the Fourth Proportional to 28,502.28, 42,695.10 and 16,779.96

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Solution

The fourth proportional to 28,502.28, 42,695.10 and 16,779.96 is: 25,135.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,502.28 : 42,695.10 = 16,779.96 : x
  2. Step 2: Convert to fraction form
    28,502.28/42,695.10 = 16,779.96/x
  3. Step 3: Cross multiply
    28,502.28x = 42,695.10 × 16,779.96
  4. Step 4: Simplify right side
    28,502.28x = 716,422,070.20
  5. Step 5: Solve for x
    x = 716,422,070.20/28,502.28
  6. Step 6: Final answer
    x = 25,135.61

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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.