Home / 30,023.87-45,040.35-10,308.06

Finding the Fourth Proportional to 30,023.87, 45,040.35 and 10,308.06

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Solution

The fourth proportional to 30,023.87, 45,040.35 and 10,308.06 is: 15,463.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,023.87 : 45,040.35 = 10,308.06 : x
  2. Step 2: Convert to fraction form
    30,023.87/45,040.35 = 10,308.06/x
  3. Step 3: Cross multiply
    30,023.87x = 45,040.35 × 10,308.06
  4. Step 4: Simplify right side
    30,023.87x = 464,278,668.88
  5. Step 5: Solve for x
    x = 464,278,668.88/30,023.87
  6. Step 6: Final answer
    x = 15,463.65

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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.