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Finding the Fourth Proportional to 30,515.59, 45,759.03 and 11,804.43

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Solution

The fourth proportional to 30,515.59, 45,759.03 and 11,804.43 is: 17,701.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,515.59 : 45,759.03 = 11,804.43 : x
  2. Step 2: Convert to fraction form
    30,515.59/45,759.03 = 11,804.43/x
  3. Step 3: Cross multiply
    30,515.59x = 45,759.03 × 11,804.43
  4. Step 4: Simplify right side
    30,515.59x = 540,159,393.83
  5. Step 5: Solve for x
    x = 540,159,393.83/30,515.59
  6. Step 6: Final answer
    x = 17,701.10

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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.