Home / 21,659.67-29,881.31-14,573.79

Finding the Fourth Proportional to 21,659.67, 29,881.31 and 14,573.79

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Solution

The fourth proportional to 21,659.67, 29,881.31 and 14,573.79 is: 20,105.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,659.67 : 29,881.31 = 14,573.79 : x
  2. Step 2: Convert to fraction form
    21,659.67/29,881.31 = 14,573.79/x
  3. Step 3: Cross multiply
    21,659.67x = 29,881.31 × 14,573.79
  4. Step 4: Simplify right side
    21,659.67x = 435,483,864.00
  5. Step 5: Solve for x
    x = 435,483,864.00/21,659.67
  6. Step 6: Final answer
    x = 20,105.75

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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.