Home / 21,342.10-29,441.60-13,794.88

Finding the Fourth Proportional to 21,342.10, 29,441.60 and 13,794.88

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Solution

The fourth proportional to 21,342.10, 29,441.60 and 13,794.88 is: 19,030.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,342.10 : 29,441.60 = 13,794.88 : x
  2. Step 2: Convert to fraction form
    21,342.10/29,441.60 = 13,794.88/x
  3. Step 3: Cross multiply
    21,342.10x = 29,441.60 × 13,794.88
  4. Step 4: Simplify right side
    21,342.10x = 406,143,339.01
  5. Step 5: Solve for x
    x = 406,143,339.01/21,342.10
  6. Step 6: Final answer
    x = 19,030.15

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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.