Home / 21,212.60-29,259.94-13,032.62

Finding the Fourth Proportional to 21,212.60, 29,259.94 and 13,032.62

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Solution

The fourth proportional to 21,212.60, 29,259.94 and 13,032.62 is: 17,976.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,212.60 : 29,259.94 = 13,032.62 : x
  2. Step 2: Convert to fraction form
    21,212.60/29,259.94 = 13,032.62/x
  3. Step 3: Cross multiply
    21,212.60x = 29,259.94 × 13,032.62
  4. Step 4: Simplify right side
    21,212.60x = 381,333,679.24
  5. Step 5: Solve for x
    x = 381,333,679.24/21,212.60
  6. Step 6: Final answer
    x = 17,976.75

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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.