Home / 21,943.36-30,287.52-13,448.32

Finding the Fourth Proportional to 21,943.36, 30,287.52 and 13,448.32

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Solution

The fourth proportional to 21,943.36, 30,287.52 and 13,448.32 is: 18,562.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,943.36 : 30,287.52 = 13,448.32 : x
  2. Step 2: Convert to fraction form
    21,943.36/30,287.52 = 13,448.32/x
  3. Step 3: Cross multiply
    21,943.36x = 30,287.52 × 13,448.32
  4. Step 4: Simplify right side
    21,943.36x = 407,316,260.97
  5. Step 5: Solve for x
    x = 407,316,260.97/21,943.36
  6. Step 6: Final answer
    x = 18,562.16

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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.