Home / 39,142.50-58,724.55-11,440.50

Finding the Fourth Proportional to 39,142.50, 58,724.55 and 11,440.50

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Solution

The fourth proportional to 39,142.50, 58,724.55 and 11,440.50 is: 17,163.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,142.50 : 58,724.55 = 11,440.50 : x
  2. Step 2: Convert to fraction form
    39,142.50/58,724.55 = 11,440.50/x
  3. Step 3: Cross multiply
    39,142.50x = 58,724.55 × 11,440.50
  4. Step 4: Simplify right side
    39,142.50x = 671,838,214.28
  5. Step 5: Solve for x
    x = 671,838,214.28/39,142.50
  6. Step 6: Final answer
    x = 17,163.91

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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.