Home / 43,490.25-65,246.31-12,325.50

Finding the Fourth Proportional to 43,490.25, 65,246.31 and 12,325.50

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Solution

The fourth proportional to 43,490.25, 65,246.31 and 12,325.50 is: 18,491.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,490.25 : 65,246.31 = 12,325.50 : x
  2. Step 2: Convert to fraction form
    43,490.25/65,246.31 = 12,325.50/x
  3. Step 3: Cross multiply
    43,490.25x = 65,246.31 × 12,325.50
  4. Step 4: Simplify right side
    43,490.25x = 804,193,393.91
  5. Step 5: Solve for x
    x = 804,193,393.91/43,490.25
  6. Step 6: Final answer
    x = 18,491.35

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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.