Home / 20,457.10-28,232.93-12,504.62

Finding the Fourth Proportional to 20,457.10, 28,232.93 and 12,504.62

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Solution

The fourth proportional to 20,457.10, 28,232.93 and 12,504.62 is: 17,257.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,457.10 : 28,232.93 = 12,504.62 : x
  2. Step 2: Convert to fraction form
    20,457.10/28,232.93 = 12,504.62/x
  3. Step 3: Cross multiply
    20,457.10x = 28,232.93 × 12,504.62
  4. Step 4: Simplify right side
    20,457.10x = 353,042,061.14
  5. Step 5: Solve for x
    x = 353,042,061.14/20,457.10
  6. Step 6: Final answer
    x = 17,257.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.