Home / 21,457.91-32,029.03-19,953.74

Finding the Fourth Proportional to 21,457.91, 32,029.03 and 19,953.74

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Solution

The fourth proportional to 21,457.91, 32,029.03 and 19,953.74 is: 29,783.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,457.91 : 32,029.03 = 19,953.74 : x
  2. Step 2: Convert to fraction form
    21,457.91/32,029.03 = 19,953.74/x
  3. Step 3: Cross multiply
    21,457.91x = 32,029.03 × 19,953.74
  4. Step 4: Simplify right side
    21,457.91x = 639,098,837.30
  5. Step 5: Solve for x
    x = 639,098,837.30/21,457.91
  6. Step 6: Final answer
    x = 29,783.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.