Home / 15,931.99-21,989.78-10,333.27

Finding the Fourth Proportional to 15,931.99, 21,989.78 and 10,333.27

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Solution

The fourth proportional to 15,931.99, 21,989.78 and 10,333.27 is: 14,262.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,931.99 : 21,989.78 = 10,333.27 : x
  2. Step 2: Convert to fraction form
    15,931.99/21,989.78 = 10,333.27/x
  3. Step 3: Cross multiply
    15,931.99x = 21,989.78 × 10,333.27
  4. Step 4: Simplify right side
    15,931.99x = 227,226,333.98
  5. Step 5: Solve for x
    x = 227,226,333.98/15,931.99
  6. Step 6: Final answer
    x = 14,262.27

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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.