Home / 28,918.02-43,377.02-8,141.52

Finding the Fourth Proportional to 28,918.02, 43,377.02 and 8,141.52

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Solution

The fourth proportional to 28,918.02, 43,377.02 and 8,141.52 is: 12,212.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,918.02 : 43,377.02 = 8,141.52 : x
  2. Step 2: Convert to fraction form
    28,918.02/43,377.02 = 8,141.52/x
  3. Step 3: Cross multiply
    28,918.02x = 43,377.02 × 8,141.52
  4. Step 4: Simplify right side
    28,918.02x = 353,154,875.87
  5. Step 5: Solve for x
    x = 353,154,875.87/28,918.02
  6. Step 6: Final answer
    x = 12,212.28

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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.