Home / 15,631.92-23,427.54-11,920.50

Finding the Fourth Proportional to 15,631.92, 23,427.54 and 11,920.50

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Solution

The fourth proportional to 15,631.92, 23,427.54 and 11,920.50 is: 17,865.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,631.92 : 23,427.54 = 11,920.50 : x
  2. Step 2: Convert to fraction form
    15,631.92/23,427.54 = 11,920.50/x
  3. Step 3: Cross multiply
    15,631.92x = 23,427.54 × 11,920.50
  4. Step 4: Simplify right side
    15,631.92x = 279,267,990.57
  5. Step 5: Solve for x
    x = 279,267,990.57/15,631.92
  6. Step 6: Final answer
    x = 17,865.24

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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.