Home / 20,317.75-30,448.94-9,787.01

Finding the Fourth Proportional to 20,317.75, 30,448.94 and 9,787.01

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Solution

The fourth proportional to 20,317.75, 30,448.94 and 9,787.01 is: 14,667.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,317.75 : 30,448.94 = 9,787.01 : x
  2. Step 2: Convert to fraction form
    20,317.75/30,448.94 = 9,787.01/x
  3. Step 3: Cross multiply
    20,317.75x = 30,448.94 × 9,787.01
  4. Step 4: Simplify right side
    20,317.75x = 298,003,928.02
  5. Step 5: Solve for x
    x = 298,003,928.02/20,317.75
  6. Step 6: Final answer
    x = 14,667.18

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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.