Home / 19,461.58-29,162.49-13,112.80

Finding the Fourth Proportional to 19,461.58, 29,162.49 and 13,112.80

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Solution

The fourth proportional to 19,461.58, 29,162.49 and 13,112.80 is: 19,649.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,461.58 : 29,162.49 = 13,112.80 : x
  2. Step 2: Convert to fraction form
    19,461.58/29,162.49 = 13,112.80/x
  3. Step 3: Cross multiply
    19,461.58x = 29,162.49 × 13,112.80
  4. Step 4: Simplify right side
    19,461.58x = 382,401,898.87
  5. Step 5: Solve for x
    x = 382,401,898.87/19,461.58
  6. Step 6: Final answer
    x = 19,649.07

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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.