Home / 21,004.96-31,507.43-17,292.30

Finding the Fourth Proportional to 21,004.96, 31,507.43 and 17,292.30

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Solution

The fourth proportional to 21,004.96, 31,507.43 and 17,292.30 is: 25,938.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004.96 : 31,507.43 = 17,292.30 : x
  2. Step 2: Convert to fraction form
    21,004.96/31,507.43 = 17,292.30/x
  3. Step 3: Cross multiply
    21,004.96x = 31,507.43 × 17,292.30
  4. Step 4: Simplify right side
    21,004.96x = 544,835,931.79
  5. Step 5: Solve for x
    x = 544,835,931.79/21,004.96
  6. Step 6: Final answer
    x = 25,938.44

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.