Home / 39,981.23-59,961.39-11,893.72

Finding the Fourth Proportional to 39,981.23, 59,961.39 and 11,893.72

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Solution

The fourth proportional to 39,981.23, 59,961.39 and 11,893.72 is: 17,837.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,981.23 : 59,961.39 = 11,893.72 : x
  2. Step 2: Convert to fraction form
    39,981.23/59,961.39 = 11,893.72/x
  3. Step 3: Cross multiply
    39,981.23x = 59,961.39 × 11,893.72
  4. Step 4: Simplify right side
    39,981.23x = 713,163,983.47
  5. Step 5: Solve for x
    x = 713,163,983.47/39,981.23
  6. Step 6: Final answer
    x = 17,837.47

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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.