Home / 30,371.87-45,558.50-12,605.24

Finding the Fourth Proportional to 30,371.87, 45,558.50 and 12,605.24

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Solution

The fourth proportional to 30,371.87, 45,558.50 and 12,605.24 is: 18,908.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,371.87 : 45,558.50 = 12,605.24 : x
  2. Step 2: Convert to fraction form
    30,371.87/45,558.50 = 12,605.24/x
  3. Step 3: Cross multiply
    30,371.87x = 45,558.50 × 12,605.24
  4. Step 4: Simplify right side
    30,371.87x = 574,275,877.41
  5. Step 5: Solve for x
    x = 574,275,877.41/30,371.87
  6. Step 6: Final answer
    x = 18,908.15

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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.