Home / 21,754.07-30,009.93-14,196.90

Finding the Fourth Proportional to 21,754.07, 30,009.93 and 14,196.90

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Solution

The fourth proportional to 21,754.07, 30,009.93 and 14,196.90 is: 19,584.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,754.07 : 30,009.93 = 14,196.90 : x
  2. Step 2: Convert to fraction form
    21,754.07/30,009.93 = 14,196.90/x
  3. Step 3: Cross multiply
    21,754.07x = 30,009.93 × 14,196.90
  4. Step 4: Simplify right side
    21,754.07x = 426,047,975.22
  5. Step 5: Solve for x
    x = 426,047,975.22/21,754.07
  6. Step 6: Final answer
    x = 19,584.75

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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.