Home / 28,442.88-42,639.48-14,384.52

Finding the Fourth Proportional to 28,442.88, 42,639.48 and 14,384.52

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Solution

The fourth proportional to 28,442.88, 42,639.48 and 14,384.52 is: 21,564.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,442.88 : 42,639.48 = 14,384.52 : x
  2. Step 2: Convert to fraction form
    28,442.88/42,639.48 = 14,384.52/x
  3. Step 3: Cross multiply
    28,442.88x = 42,639.48 × 14,384.52
  4. Step 4: Simplify right side
    28,442.88x = 613,348,452.85
  5. Step 5: Solve for x
    x = 613,348,452.85/28,442.88
  6. Step 6: Final answer
    x = 21,564.22

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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.