Home / 30,384.72-45,581.64-13,744.38

Finding the Fourth Proportional to 30,384.72, 45,581.64 and 13,744.38

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Solution

The fourth proportional to 30,384.72, 45,581.64 and 13,744.38 is: 20,618.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,384.72 : 45,581.64 = 13,744.38 : x
  2. Step 2: Convert to fraction form
    30,384.72/45,581.64 = 13,744.38/x
  3. Step 3: Cross multiply
    30,384.72x = 45,581.64 × 13,744.38
  4. Step 4: Simplify right side
    30,384.72x = 626,491,500.57
  5. Step 5: Solve for x
    x = 626,491,500.57/30,384.72
  6. Step 6: Final answer
    x = 20,618.64

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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.