Home / 39,142.18-58,723-11,440.18

Finding the Fourth Proportional to 39,142.18, 58,723 and 11,440.18

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Solution

The fourth proportional to 39,142.18, 58,723 and 11,440.18 is: 17,163.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,142.18 : 58,723 = 11,440.18 : x
  2. Step 2: Convert to fraction form
    39,142.18/58,723 = 11,440.18/x
  3. Step 3: Cross multiply
    39,142.18x = 58,723 × 11,440.18
  4. Step 4: Simplify right side
    39,142.18x = 671,801,690.14
  5. Step 5: Solve for x
    x = 671,801,690.14/39,142.18
  6. Step 6: Final answer
    x = 17,163.11

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1.5x scale

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.