Home / 22,386.39-30,889.79-12,953.13

Finding the Fourth Proportional to 22,386.39, 30,889.79 and 12,953.13

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Solution

The fourth proportional to 22,386.39, 30,889.79 and 12,953.13 is: 17,873.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,386.39 : 30,889.79 = 12,953.13 : x
  2. Step 2: Convert to fraction form
    22,386.39/30,889.79 = 12,953.13/x
  3. Step 3: Cross multiply
    22,386.39x = 30,889.79 × 12,953.13
  4. Step 4: Simplify right side
    22,386.39x = 400,119,246.33
  5. Step 5: Solve for x
    x = 400,119,246.33/22,386.39
  6. Step 6: Final answer
    x = 17,873.33

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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.