Home / 25,947.50-38,930.44-12,809.10

Finding the Fourth Proportional to 25,947.50, 38,930.44 and 12,809.10

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Solution

The fourth proportional to 25,947.50, 38,930.44 and 12,809.10 is: 19,218.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,947.50 : 38,930.44 = 12,809.10 : x
  2. Step 2: Convert to fraction form
    25,947.50/38,930.44 = 12,809.10/x
  3. Step 3: Cross multiply
    25,947.50x = 38,930.44 × 12,809.10
  4. Step 4: Simplify right side
    25,947.50x = 498,663,899.00
  5. Step 5: Solve for x
    x = 498,663,899.00/25,947.50
  6. Step 6: Final answer
    x = 19,218.19

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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.