Home / 21,624.60-29,844-13,559.52

Finding the Fourth Proportional to 21,624.60, 29,844 and 13,559.52

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Solution

The fourth proportional to 21,624.60, 29,844 and 13,559.52 is: 18,713.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,624.60 : 29,844 = 13,559.52 : x
  2. Step 2: Convert to fraction form
    21,624.60/29,844 = 13,559.52/x
  3. Step 3: Cross multiply
    21,624.60x = 29,844 × 13,559.52
  4. Step 4: Simplify right side
    21,624.60x = 404,670,314.88
  5. Step 5: Solve for x
    x = 404,670,314.88/21,624.60
  6. Step 6: Final answer
    x = 18,713.42

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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.