Home / 28,641.96-42,874.30-15,973.80

Finding the Fourth Proportional to 28,641.96, 42,874.30 and 15,973.80

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Solution

The fourth proportional to 28,641.96, 42,874.30 and 15,973.80 is: 23,911.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,641.96 : 42,874.30 = 15,973.80 : x
  2. Step 2: Convert to fraction form
    28,641.96/42,874.30 = 15,973.80/x
  3. Step 3: Cross multiply
    28,641.96x = 42,874.30 × 15,973.80
  4. Step 4: Simplify right side
    28,641.96x = 684,865,493.34
  5. Step 5: Solve for x
    x = 684,865,493.34/28,641.96
  6. Step 6: Final answer
    x = 23,911.26

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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.