Home / 19,457.49-29,162.97-11,143.20

Finding the Fourth Proportional to 19,457.49, 29,162.97 and 11,143.20

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Solution

The fourth proportional to 19,457.49, 29,162.97 and 11,143.20 is: 16,701.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,457.49 : 29,162.97 = 11,143.20 : x
  2. Step 2: Convert to fraction form
    19,457.49/29,162.97 = 11,143.20/x
  3. Step 3: Cross multiply
    19,457.49x = 29,162.97 × 11,143.20
  4. Step 4: Simplify right side
    19,457.49x = 324,968,807.30
  5. Step 5: Solve for x
    x = 324,968,807.30/19,457.49
  6. Step 6: Final answer
    x = 16,701.48

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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.