Home / 25,955.10-38,906.73-12,816.90

Finding the Fourth Proportional to 25,955.10, 38,906.73 and 12,816.90

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Solution

The fourth proportional to 25,955.10, 38,906.73 and 12,816.90 is: 19,212.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,955.10 : 38,906.73 = 12,816.90 : x
  2. Step 2: Convert to fraction form
    25,955.10/38,906.73 = 12,816.90/x
  3. Step 3: Cross multiply
    25,955.10x = 38,906.73 × 12,816.90
  4. Step 4: Simplify right side
    25,955.10x = 498,663,667.74
  5. Step 5: Solve for x
    x = 498,663,667.74/25,955.10
  6. Step 6: Final answer
    x = 19,212.55

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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.