Home / 28,748.32-43,044.64-21,264

Finding the Fourth Proportional to 28,748.32, 43,044.64 and 21,264

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Solution

The fourth proportional to 28,748.32, 43,044.64 and 21,264 is: 31,838.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,748.32 : 43,044.64 = 21,264 : x
  2. Step 2: Convert to fraction form
    28,748.32/43,044.64 = 21,264/x
  3. Step 3: Cross multiply
    28,748.32x = 43,044.64 × 21,264
  4. Step 4: Simplify right side
    28,748.32x = 915,301,224.96
  5. Step 5: Solve for x
    x = 915,301,224.96/28,748.32
  6. Step 6: Final answer
    x = 31,838.42

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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.