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Finding the Fourth Proportional to 30,161.66, 45,257.57 and 13,533.57

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Solution

The fourth proportional to 30,161.66, 45,257.57 and 13,533.57 is: 20,307.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,161.66 : 45,257.57 = 13,533.57 : x
  2. Step 2: Convert to fraction form
    30,161.66/45,257.57 = 13,533.57/x
  3. Step 3: Cross multiply
    30,161.66x = 45,257.57 × 13,533.57
  4. Step 4: Simplify right side
    30,161.66x = 612,496,423.96
  5. Step 5: Solve for x
    x = 612,496,423.96/30,161.66
  6. Step 6: Final answer
    x = 20,307.12

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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.