Home / 39,514.20-59,175.30-21,005.40

Finding the Fourth Proportional to 39,514.20, 59,175.30 and 21,005.40

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Solution

The fourth proportional to 39,514.20, 59,175.30 and 21,005.40 is: 31,457.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,514.20 : 59,175.30 = 21,005.40 : x
  2. Step 2: Convert to fraction form
    39,514.20/59,175.30 = 21,005.40/x
  3. Step 3: Cross multiply
    39,514.20x = 59,175.30 × 21,005.40
  4. Step 4: Simplify right side
    39,514.20x = 1,243,000,846.62
  5. Step 5: Solve for x
    x = 1,243,000,846.62/39,514.20
  6. Step 6: Final answer
    x = 31,457.07

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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.