Home / 14,280.52-21,421.86-3,892

Finding the Fourth Proportional to 14,280.52, 21,421.86 and 3,892

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Solution

The fourth proportional to 14,280.52, 21,421.86 and 3,892 is: 5,838.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,280.52 : 21,421.86 = 3,892 : x
  2. Step 2: Convert to fraction form
    14,280.52/21,421.86 = 3,892/x
  3. Step 3: Cross multiply
    14,280.52x = 21,421.86 × 3,892
  4. Step 4: Simplify right side
    14,280.52x = 83,373,879.12
  5. Step 5: Solve for x
    x = 83,373,879.12/14,280.52
  6. Step 6: Final answer
    x = 5,838.29

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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.