Home / 21,903.69-30,216.56-14,346.75

Finding the Fourth Proportional to 21,903.69, 30,216.56 and 14,346.75

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Solution

The fourth proportional to 21,903.69, 30,216.56 and 14,346.75 is: 19,791.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,903.69 : 30,216.56 = 14,346.75 : x
  2. Step 2: Convert to fraction form
    21,903.69/30,216.56 = 14,346.75/x
  3. Step 3: Cross multiply
    21,903.69x = 30,216.56 × 14,346.75
  4. Step 4: Simplify right side
    21,903.69x = 433,509,360.45
  5. Step 5: Solve for x
    x = 433,509,360.45/21,903.69
  6. Step 6: Final answer
    x = 19,791.61

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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.