Home / 20,318.04-30,477.06-9,922.50

Finding the Fourth Proportional to 20,318.04, 30,477.06 and 9,922.50

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Solution

The fourth proportional to 20,318.04, 30,477.06 and 9,922.50 is: 14,883.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,318.04 : 30,477.06 = 9,922.50 : x
  2. Step 2: Convert to fraction form
    20,318.04/30,477.06 = 9,922.50/x
  3. Step 3: Cross multiply
    20,318.04x = 30,477.06 × 9,922.50
  4. Step 4: Simplify right side
    20,318.04x = 302,408,627.85
  5. Step 5: Solve for x
    x = 302,408,627.85/20,318.04
  6. Step 6: Final answer
    x = 14,883.75

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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.