Home / 14,280.30-21,418.02-3,889.62

Finding the Fourth Proportional to 14,280.30, 21,418.02 and 3,889.62

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Solution

The fourth proportional to 14,280.30, 21,418.02 and 3,889.62 is: 5,833.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,280.30 : 21,418.02 = 3,889.62 : x
  2. Step 2: Convert to fraction form
    14,280.30/21,418.02 = 3,889.62/x
  3. Step 3: Cross multiply
    14,280.30x = 21,418.02 × 3,889.62
  4. Step 4: Simplify right side
    14,280.30x = 83,307,958.95
  5. Step 5: Solve for x
    x = 83,307,958.95/14,280.30
  6. Step 6: Final answer
    x = 5,833.77

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1.5x scale

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.