Home / 22,386.36-30,896.19-12,955.53

Finding the Fourth Proportional to 22,386.36, 30,896.19 and 12,955.53

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Solution

The fourth proportional to 22,386.36, 30,896.19 and 12,955.53 is: 17,880.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,386.36 : 30,896.19 = 12,955.53 : x
  2. Step 2: Convert to fraction form
    22,386.36/30,896.19 = 12,955.53/x
  3. Step 3: Cross multiply
    22,386.36x = 30,896.19 × 12,955.53
  4. Step 4: Simplify right side
    22,386.36x = 400,276,516.43
  5. Step 5: Solve for x
    x = 400,276,516.43/22,386.36
  6. Step 6: Final answer
    x = 17,880.38

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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.