Home / 19,901.12-27,448.22-12,351.92

Finding the Fourth Proportional to 19,901.12, 27,448.22 and 12,351.92

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Solution

The fourth proportional to 19,901.12, 27,448.22 and 12,351.92 is: 17,036.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,901.12 : 27,448.22 = 12,351.92 : x
  2. Step 2: Convert to fraction form
    19,901.12/27,448.22 = 12,351.92/x
  3. Step 3: Cross multiply
    19,901.12x = 27,448.22 × 12,351.92
  4. Step 4: Simplify right side
    19,901.12x = 339,038,111.22
  5. Step 5: Solve for x
    x = 339,038,111.22/19,901.12
  6. Step 6: Final answer
    x = 17,036.14

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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.