Home / 21,184.37-31,781.95-14,956.51

Finding the Fourth Proportional to 21,184.37, 31,781.95 and 14,956.51

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Solution

The fourth proportional to 21,184.37, 31,781.95 and 14,956.51 is: 22,438.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,184.37 : 31,781.95 = 14,956.51 : x
  2. Step 2: Convert to fraction form
    21,184.37/31,781.95 = 14,956.51/x
  3. Step 3: Cross multiply
    21,184.37x = 31,781.95 × 14,956.51
  4. Step 4: Simplify right side
    21,184.37x = 475,346,978.21
  5. Step 5: Solve for x
    x = 475,346,978.21/21,184.37
  6. Step 6: Final answer
    x = 22,438.58

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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.