Home / 32,111.91-48,162.87-12,387.60

Finding the Fourth Proportional to 32,111.91, 48,162.87 and 12,387.60

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Solution

The fourth proportional to 32,111.91, 48,162.87 and 12,387.60 is: 18,579.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,111.91 : 48,162.87 = 12,387.60 : x
  2. Step 2: Convert to fraction form
    32,111.91/48,162.87 = 12,387.60/x
  3. Step 3: Cross multiply
    32,111.91x = 48,162.87 × 12,387.60
  4. Step 4: Simplify right side
    32,111.91x = 596,622,368.41
  5. Step 5: Solve for x
    x = 596,622,368.41/32,111.91
  6. Step 6: Final answer
    x = 18,579.47

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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.