Home / 39,431.08-59,148-12,776.44

Finding the Fourth Proportional to 39,431.08, 59,148 and 12,776.44

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Solution

The fourth proportional to 39,431.08, 59,148 and 12,776.44 is: 19,165.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,431.08 : 59,148 = 12,776.44 : x
  2. Step 2: Convert to fraction form
    39,431.08/59,148 = 12,776.44/x
  3. Step 3: Cross multiply
    39,431.08x = 59,148 × 12,776.44
  4. Step 4: Simplify right side
    39,431.08x = 755,700,873.12
  5. Step 5: Solve for x
    x = 755,700,873.12/39,431.08
  6. Step 6: Final answer
    x = 19,165.11

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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.