Home / 20,392.84-30,563.34-9,305.56

Finding the Fourth Proportional to 20,392.84, 30,563.34 and 9,305.56

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Solution

The fourth proportional to 20,392.84, 30,563.34 and 9,305.56 is: 13,946.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,392.84 : 30,563.34 = 9,305.56 : x
  2. Step 2: Convert to fraction form
    20,392.84/30,563.34 = 9,305.56/x
  3. Step 3: Cross multiply
    20,392.84x = 30,563.34 × 9,305.56
  4. Step 4: Simplify right side
    20,392.84x = 284,408,994.17
  5. Step 5: Solve for x
    x = 284,408,994.17/20,392.84
  6. Step 6: Final answer
    x = 13,946.51

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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.