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Finding the Fourth Proportional to 32,751, 45,203.67 and 20,812.01

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Solution

The fourth proportional to 32,751, 45,203.67 and 20,812.01 is: 28,725.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,751 : 45,203.67 = 20,812.01 : x
  2. Step 2: Convert to fraction form
    32,751/45,203.67 = 20,812.01/x
  3. Step 3: Cross multiply
    32,751x = 45,203.67 × 20,812.01
  4. Step 4: Simplify right side
    32,751x = 940,779,006.06
  5. Step 5: Solve for x
    x = 940,779,006.06/32,751
  6. Step 6: Final answer
    x = 28,725.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.