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Finding the Fourth Proportional to 30,653, 45,990.56 and 15,081.56

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Solution

The fourth proportional to 30,653, 45,990.56 and 15,081.56 is: 22,627.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,653 : 45,990.56 = 15,081.56 : x
  2. Step 2: Convert to fraction form
    30,653/45,990.56 = 15,081.56/x
  3. Step 3: Cross multiply
    30,653x = 45,990.56 × 15,081.56
  4. Step 4: Simplify right side
    30,653x = 693,609,390.07
  5. Step 5: Solve for x
    x = 693,609,390.07/30,653
  6. Step 6: Final answer
    x = 22,627.78

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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.