Home / 28,308.86-42,463.70-10,779.66

Finding the Fourth Proportional to 28,308.86, 42,463.70 and 10,779.66

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Solution

The fourth proportional to 28,308.86, 42,463.70 and 10,779.66 is: 16,169.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,308.86 : 42,463.70 = 10,779.66 : x
  2. Step 2: Convert to fraction form
    28,308.86/42,463.70 = 10,779.66/x
  3. Step 3: Cross multiply
    28,308.86x = 42,463.70 × 10,779.66
  4. Step 4: Simplify right side
    28,308.86x = 457,744,248.34
  5. Step 5: Solve for x
    x = 457,744,248.34/28,308.86
  6. Step 6: Final answer
    x = 16,169.65

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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.