Home / 30,280.75-45,423.43-9,222.57

Finding the Fourth Proportional to 30,280.75, 45,423.43 and 9,222.57

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Solution

The fourth proportional to 30,280.75, 45,423.43 and 9,222.57 is: 13,834.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,280.75 : 45,423.43 = 9,222.57 : x
  2. Step 2: Convert to fraction form
    30,280.75/45,423.43 = 9,222.57/x
  3. Step 3: Cross multiply
    30,280.75x = 45,423.43 × 9,222.57
  4. Step 4: Simplify right side
    30,280.75x = 418,920,739.76
  5. Step 5: Solve for x
    x = 418,920,739.76/30,280.75
  6. Step 6: Final answer
    x = 13,834.56

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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.