Home / 30,114.50-45,170.01-9,054.12

Finding the Fourth Proportional to 30,114.50, 45,170.01 and 9,054.12

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Solution

The fourth proportional to 30,114.50, 45,170.01 and 9,054.12 is: 13,580.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,114.50 : 45,170.01 = 9,054.12 : x
  2. Step 2: Convert to fraction form
    30,114.50/45,170.01 = 9,054.12/x
  3. Step 3: Cross multiply
    30,114.50x = 45,170.01 × 9,054.12
  4. Step 4: Simplify right side
    30,114.50x = 408,974,690.94
  5. Step 5: Solve for x
    x = 408,974,690.94/30,114.50
  6. Step 6: Final answer
    x = 13,580.66

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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.