Home / 21,203.72-29,265.48-14,828.60

Finding the Fourth Proportional to 21,203.72, 29,265.48 and 14,828.60

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Solution

The fourth proportional to 21,203.72, 29,265.48 and 14,828.60 is: 20,466.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,203.72 : 29,265.48 = 14,828.60 : x
  2. Step 2: Convert to fraction form
    21,203.72/29,265.48 = 14,828.60/x
  3. Step 3: Cross multiply
    21,203.72x = 29,265.48 × 14,828.60
  4. Step 4: Simplify right side
    21,203.72x = 433,966,096.73
  5. Step 5: Solve for x
    x = 433,966,096.73/21,203.72
  6. Step 6: Final answer
    x = 20,466.51

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1.5x scale

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.