Home / 39,159.86-58,748.90-12,863.00

Finding the Fourth Proportional to 39,159.86, 58,748.90 and 12,863.00

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Solution

The fourth proportional to 39,159.86, 58,748.90 and 12,863.00 is: 19,297.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,159.86 : 58,748.90 = 12,863.00 : x
  2. Step 2: Convert to fraction form
    39,159.86/58,748.90 = 12,863.00/x
  3. Step 3: Cross multiply
    39,159.86x = 58,748.90 × 12,863.00
  4. Step 4: Simplify right side
    39,159.86x = 755,687,183.26
  5. Step 5: Solve for x
    x = 755,687,183.26/39,159.86
  6. Step 6: Final answer
    x = 19,297.50

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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.