Home / 34,491.78-51,718.14-20,453.76

Finding the Fourth Proportional to 34,491.78, 51,718.14 and 20,453.76

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Solution

The fourth proportional to 34,491.78, 51,718.14 and 20,453.76 is: 30,669.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,491.78 : 51,718.14 = 20,453.76 : x
  2. Step 2: Convert to fraction form
    34,491.78/51,718.14 = 20,453.76/x
  3. Step 3: Cross multiply
    34,491.78x = 51,718.14 × 20,453.76
  4. Step 4: Simplify right side
    34,491.78x = 1,057,830,423.21
  5. Step 5: Solve for x
    x = 1,057,830,423.21/34,491.78
  6. Step 6: Final answer
    x = 30,669.06

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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.