Home / 28,551.78-42,866.40-16,080.48

Finding the Fourth Proportional to 28,551.78, 42,866.40 and 16,080.48

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Solution

The fourth proportional to 28,551.78, 42,866.40 and 16,080.48 is: 24,142.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,551.78 : 42,866.40 = 16,080.48 : x
  2. Step 2: Convert to fraction form
    28,551.78/42,866.40 = 16,080.48/x
  3. Step 3: Cross multiply
    28,551.78x = 42,866.40 × 16,080.48
  4. Step 4: Simplify right side
    28,551.78x = 689,312,287.87
  5. Step 5: Solve for x
    x = 689,312,287.87/28,551.78
  6. Step 6: Final answer
    x = 24,142.53

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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.