Home / 21,442.53-29,590.69-13,059.03

Finding the Fourth Proportional to 21,442.53, 29,590.69 and 13,059.03

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Solution

The fourth proportional to 21,442.53, 29,590.69 and 13,059.03 is: 18,021.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,442.53 : 29,590.69 = 13,059.03 : x
  2. Step 2: Convert to fraction form
    21,442.53/29,590.69 = 13,059.03/x
  3. Step 3: Cross multiply
    21,442.53x = 29,590.69 × 13,059.03
  4. Step 4: Simplify right side
    21,442.53x = 386,425,708.43
  5. Step 5: Solve for x
    x = 386,425,708.43/21,442.53
  6. Step 6: Final answer
    x = 18,021.46

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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.