Home / 21,759.19-30,026.05-12,327.55

Finding the Fourth Proportional to 21,759.19, 30,026.05 and 12,327.55

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Solution

The fourth proportional to 21,759.19, 30,026.05 and 12,327.55 is: 17,011.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,759.19 : 30,026.05 = 12,327.55 : x
  2. Step 2: Convert to fraction form
    21,759.19/30,026.05 = 12,327.55/x
  3. Step 3: Cross multiply
    21,759.19x = 30,026.05 × 12,327.55
  4. Step 4: Simplify right side
    21,759.19x = 370,147,526.79
  5. Step 5: Solve for x
    x = 370,147,526.79/21,759.19
  6. Step 6: Final answer
    x = 17,011.09

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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.