Home / 21,920.91-30,253.64-14,373.60

Finding the Fourth Proportional to 21,920.91, 30,253.64 and 14,373.60

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Solution

The fourth proportional to 21,920.91, 30,253.64 and 14,373.60 is: 19,837.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,920.91 : 30,253.64 = 14,373.60 : x
  2. Step 2: Convert to fraction form
    21,920.91/30,253.64 = 14,373.60/x
  3. Step 3: Cross multiply
    21,920.91x = 30,253.64 × 14,373.60
  4. Step 4: Simplify right side
    21,920.91x = 434,853,648.04
  5. Step 5: Solve for x
    x = 434,853,648.04/21,920.91
  6. Step 6: Final answer
    x = 19,837.39

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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.