Home / 30,621.50-45,949.80-16,581.50

Finding the Fourth Proportional to 30,621.50, 45,949.80 and 16,581.50

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Solution

The fourth proportional to 30,621.50, 45,949.80 and 16,581.50 is: 24,881.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,621.50 : 45,949.80 = 16,581.50 : x
  2. Step 2: Convert to fraction form
    30,621.50/45,949.80 = 16,581.50/x
  3. Step 3: Cross multiply
    30,621.50x = 45,949.80 × 16,581.50
  4. Step 4: Simplify right side
    30,621.50x = 761,916,608.70
  5. Step 5: Solve for x
    x = 761,916,608.70/30,621.50
  6. Step 6: Final answer
    x = 24,881.75

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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.