Home / 21,415.83-32,127.23-7,372.45

Finding the Fourth Proportional to 21,415.83, 32,127.23 and 7,372.45

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Solution

The fourth proportional to 21,415.83, 32,127.23 and 7,372.45 is: 11,059.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,415.83 : 32,127.23 = 7,372.45 : x
  2. Step 2: Convert to fraction form
    21,415.83/32,127.23 = 7,372.45/x
  3. Step 3: Cross multiply
    21,415.83x = 32,127.23 × 7,372.45
  4. Step 4: Simplify right side
    21,415.83x = 236,856,455.40
  5. Step 5: Solve for x
    x = 236,856,455.40/21,415.83
  6. Step 6: Final answer
    x = 11,059.88

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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.