Home / 14,491.72-21,607.78-14,229.28

Finding the Fourth Proportional to 14,491.72, 21,607.78 and 14,229.28

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Solution

The fourth proportional to 14,491.72, 21,607.78 and 14,229.28 is: 21,216.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,491.72 : 21,607.78 = 14,229.28 : x
  2. Step 2: Convert to fraction form
    14,491.72/21,607.78 = 14,229.28/x
  3. Step 3: Cross multiply
    14,491.72x = 21,607.78 × 14,229.28
  4. Step 4: Simplify right side
    14,491.72x = 307,463,129.89
  5. Step 5: Solve for x
    x = 307,463,129.89/14,491.72
  6. Step 6: Final answer
    x = 21,216.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.