Home / 21,422.06-32,125.15-7,378.21

Finding the Fourth Proportional to 21,422.06, 32,125.15 and 7,378.21

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Solution

The fourth proportional to 21,422.06, 32,125.15 and 7,378.21 is: 11,064.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,422.06 : 32,125.15 = 7,378.21 : x
  2. Step 2: Convert to fraction form
    21,422.06/32,125.15 = 7,378.21/x
  3. Step 3: Cross multiply
    21,422.06x = 32,125.15 × 7,378.21
  4. Step 4: Simplify right side
    21,422.06x = 237,026,102.98
  5. Step 5: Solve for x
    x = 237,026,102.98/21,422.06
  6. Step 6: Final answer
    x = 11,064.58

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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.