Home / 21,952.23-30,284.07-13,989.48

Finding the Fourth Proportional to 21,952.23, 30,284.07 and 13,989.48

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Solution

The fourth proportional to 21,952.23, 30,284.07 and 13,989.48 is: 19,299.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,952.23 : 30,284.07 = 13,989.48 : x
  2. Step 2: Convert to fraction form
    21,952.23/30,284.07 = 13,989.48/x
  3. Step 3: Cross multiply
    21,952.23x = 30,284.07 × 13,989.48
  4. Step 4: Simplify right side
    21,952.23x = 423,658,391.58
  5. Step 5: Solve for x
    x = 423,658,391.58/21,952.23
  6. Step 6: Final answer
    x = 19,299.10

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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.