Home / 30,008.43-45,007.52-12,473.55

Finding the Fourth Proportional to 30,008.43, 45,007.52 and 12,473.55

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Solution

The fourth proportional to 30,008.43, 45,007.52 and 12,473.55 is: 18,708.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,008.43 : 45,007.52 = 12,473.55 : x
  2. Step 2: Convert to fraction form
    30,008.43/45,007.52 = 12,473.55/x
  3. Step 3: Cross multiply
    30,008.43x = 45,007.52 × 12,473.55
  4. Step 4: Simplify right side
    30,008.43x = 561,403,488.73
  5. Step 5: Solve for x
    x = 561,403,488.73/30,008.43
  6. Step 6: Final answer
    x = 18,708.19

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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.