Home / 21,890.48-32,851.60-8,746.60

Finding the Fourth Proportional to 21,890.48, 32,851.60 and 8,746.60

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Solution

The fourth proportional to 21,890.48, 32,851.60 and 8,746.60 is: 13,126.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,890.48 : 32,851.60 = 8,746.60 : x
  2. Step 2: Convert to fraction form
    21,890.48/32,851.60 = 8,746.60/x
  3. Step 3: Cross multiply
    21,890.48x = 32,851.60 × 8,746.60
  4. Step 4: Simplify right side
    21,890.48x = 287,339,804.56
  5. Step 5: Solve for x
    x = 287,339,804.56/21,890.48
  6. Step 6: Final answer
    x = 13,126.25

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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.