Home / 30,145.02-45,211.38-11,418.66

Finding the Fourth Proportional to 30,145.02, 45,211.38 and 11,418.66

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Solution

The fourth proportional to 30,145.02, 45,211.38 and 11,418.66 is: 17,125.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,145.02 : 45,211.38 = 11,418.66 : x
  2. Step 2: Convert to fraction form
    30,145.02/45,211.38 = 11,418.66/x
  3. Step 3: Cross multiply
    30,145.02x = 45,211.38 × 11,418.66
  4. Step 4: Simplify right side
    30,145.02x = 516,253,376.35
  5. Step 5: Solve for x
    x = 516,253,376.35/30,145.02
  6. Step 6: Final answer
    x = 17,125.66

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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.