Home / 15,789.30-23,625.54-12,989.94

Finding the Fourth Proportional to 15,789.30, 23,625.54 and 12,989.94

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Solution

The fourth proportional to 15,789.30, 23,625.54 and 12,989.94 is: 19,436.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,789.30 : 23,625.54 = 12,989.94 : x
  2. Step 2: Convert to fraction form
    15,789.30/23,625.54 = 12,989.94/x
  3. Step 3: Cross multiply
    15,789.30x = 23,625.54 × 12,989.94
  4. Step 4: Simplify right side
    15,789.30x = 306,894,347.07
  5. Step 5: Solve for x
    x = 306,894,347.07/15,789.30
  6. Step 6: Final answer
    x = 19,436.86

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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.