Home / 20,457.72-30,637.31-13,863.92

Finding the Fourth Proportional to 20,457.72, 30,637.31 and 13,863.92

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Solution

The fourth proportional to 20,457.72, 30,637.31 and 13,863.92 is: 20,762.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,457.72 : 30,637.31 = 13,863.92 : x
  2. Step 2: Convert to fraction form
    20,457.72/30,637.31 = 13,863.92/x
  3. Step 3: Cross multiply
    20,457.72x = 30,637.31 × 13,863.92
  4. Step 4: Simplify right side
    20,457.72x = 424,752,992.35
  5. Step 5: Solve for x
    x = 424,752,992.35/20,457.72
  6. Step 6: Final answer
    x = 20,762.48

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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.