Home / 30,243.64-45,351.15-10,519.74

Finding the Fourth Proportional to 30,243.64, 45,351.15 and 10,519.74

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Solution

The fourth proportional to 30,243.64, 45,351.15 and 10,519.74 is: 15,774.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,243.64 : 45,351.15 = 10,519.74 : x
  2. Step 2: Convert to fraction form
    30,243.64/45,351.15 = 10,519.74/x
  3. Step 3: Cross multiply
    30,243.64x = 45,351.15 × 10,519.74
  4. Step 4: Simplify right side
    30,243.64x = 477,082,306.70
  5. Step 5: Solve for x
    x = 477,082,306.70/30,243.64
  6. Step 6: Final answer
    x = 15,774.63

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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.