Home / 30,151.56-45,231.45-10,424.82

Finding the Fourth Proportional to 30,151.56, 45,231.45 and 10,424.82

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Solution

The fourth proportional to 30,151.56, 45,231.45 and 10,424.82 is: 15,638.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,151.56 : 45,231.45 = 10,424.82 : x
  2. Step 2: Convert to fraction form
    30,151.56/45,231.45 = 10,424.82/x
  3. Step 3: Cross multiply
    30,151.56x = 45,231.45 × 10,424.82
  4. Step 4: Simplify right side
    30,151.56x = 471,529,498.43
  5. Step 5: Solve for x
    x = 471,529,498.43/30,151.56
  6. Step 6: Final answer
    x = 15,638.65

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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.