Home / 30,121.37-45,184.28-9,059.70

Finding the Fourth Proportional to 30,121.37, 45,184.28 and 9,059.70

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Solution

The fourth proportional to 30,121.37, 45,184.28 and 9,059.70 is: 13,590.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,121.37 : 45,184.28 = 9,059.70 : x
  2. Step 2: Convert to fraction form
    30,121.37/45,184.28 = 9,059.70/x
  3. Step 3: Cross multiply
    30,121.37x = 45,184.28 × 9,059.70
  4. Step 4: Simplify right side
    30,121.37x = 409,355,942.46
  5. Step 5: Solve for x
    x = 409,355,942.46/30,121.37
  6. Step 6: Final answer
    x = 13,590.22

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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.