Home / 39,126.93-58,697.69-12,839.19

Finding the Fourth Proportional to 39,126.93, 58,697.69 and 12,839.19

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Solution

The fourth proportional to 39,126.93, 58,697.69 and 12,839.19 is: 19,261.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,126.93 : 58,697.69 = 12,839.19 : x
  2. Step 2: Convert to fraction form
    39,126.93/58,697.69 = 12,839.19/x
  3. Step 3: Cross multiply
    39,126.93x = 58,697.69 × 12,839.19
  4. Step 4: Simplify right side
    39,126.93x = 753,630,730.28
  5. Step 5: Solve for x
    x = 753,630,730.28/39,126.93
  6. Step 6: Final answer
    x = 19,261.18

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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.