Home / 21,404.64-29,538.32-11,973.18

Finding the Fourth Proportional to 21,404.64, 29,538.32 and 11,973.18

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Solution

The fourth proportional to 21,404.64, 29,538.32 and 11,973.18 is: 16,522.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,404.64 : 29,538.32 = 11,973.18 : x
  2. Step 2: Convert to fraction form
    21,404.64/29,538.32 = 11,973.18/x
  3. Step 3: Cross multiply
    21,404.64x = 29,538.32 × 11,973.18
  4. Step 4: Simplify right side
    21,404.64x = 353,667,622.26
  5. Step 5: Solve for x
    x = 353,667,622.26/21,404.64
  6. Step 6: Final answer
    x = 16,522.94

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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.