Home / 21,059.03-29,064.09-13,502.60

Finding the Fourth Proportional to 21,059.03, 29,064.09 and 13,502.60

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Solution

The fourth proportional to 21,059.03, 29,064.09 and 13,502.60 is: 18,635.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,059.03 : 29,064.09 = 13,502.60 : x
  2. Step 2: Convert to fraction form
    21,059.03/29,064.09 = 13,502.60/x
  3. Step 3: Cross multiply
    21,059.03x = 29,064.09 × 13,502.60
  4. Step 4: Simplify right side
    21,059.03x = 392,440,757.96
  5. Step 5: Solve for x
    x = 392,440,757.96/21,059.03
  6. Step 6: Final answer
    x = 18,635.28

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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.