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Finding the Fourth Proportional to 30,424.59, 41,981.04 and 16,995.15

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Solution

The fourth proportional to 30,424.59, 41,981.04 and 16,995.15 is: 23,450.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,424.59 : 41,981.04 = 16,995.15 : x
  2. Step 2: Convert to fraction form
    30,424.59/41,981.04 = 16,995.15/x
  3. Step 3: Cross multiply
    30,424.59x = 41,981.04 × 16,995.15
  4. Step 4: Simplify right side
    30,424.59x = 713,474,071.96
  5. Step 5: Solve for x
    x = 713,474,071.96/30,424.59
  6. Step 6: Final answer
    x = 23,450.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.