Home / 39,640.50-59,418.86-14,664.51

Finding the Fourth Proportional to 39,640.50, 59,418.86 and 14,664.51

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Solution

The fourth proportional to 39,640.50, 59,418.86 and 14,664.51 is: 21,981.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,640.50 : 59,418.86 = 14,664.51 : x
  2. Step 2: Convert to fraction form
    39,640.50/59,418.86 = 14,664.51/x
  3. Step 3: Cross multiply
    39,640.50x = 59,418.86 × 14,664.51
  4. Step 4: Simplify right side
    39,640.50x = 871,348,393.34
  5. Step 5: Solve for x
    x = 871,348,393.34/39,640.50
  6. Step 6: Final answer
    x = 21,981.27

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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.