Home / 21,956.90-30,294.69-12,525.26

Finding the Fourth Proportional to 21,956.90, 30,294.69 and 12,525.26

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Solution

The fourth proportional to 21,956.90, 30,294.69 and 12,525.26 is: 17,281.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,956.90 : 30,294.69 = 12,525.26 : x
  2. Step 2: Convert to fraction form
    21,956.90/30,294.69 = 12,525.26/x
  3. Step 3: Cross multiply
    21,956.90x = 30,294.69 × 12,525.26
  4. Step 4: Simplify right side
    21,956.90x = 379,448,868.87
  5. Step 5: Solve for x
    x = 379,448,868.87/21,956.90
  6. Step 6: Final answer
    x = 17,281.53

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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.