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Finding the Fourth Proportional to 39,070, 58,614.72 and 11,368

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Solution

The fourth proportional to 39,070, 58,614.72 and 11,368 is: 17,054.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,070 : 58,614.72 = 11,368 : x
  2. Step 2: Convert to fraction form
    39,070/58,614.72 = 11,368/x
  3. Step 3: Cross multiply
    39,070x = 58,614.72 × 11,368
  4. Step 4: Simplify right side
    39,070x = 666,332,136.96
  5. Step 5: Solve for x
    x = 666,332,136.96/39,070
  6. Step 6: Final answer
    x = 17,054.83

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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.