Home / 30,047.88-41,422.08-21,068.28

Finding the Fourth Proportional to 30,047.88, 41,422.08 and 21,068.28

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Solution

The fourth proportional to 30,047.88, 41,422.08 and 21,068.28 is: 29,043.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,047.88 : 41,422.08 = 21,068.28 : x
  2. Step 2: Convert to fraction form
    30,047.88/41,422.08 = 21,068.28/x
  3. Step 3: Cross multiply
    30,047.88x = 41,422.08 × 21,068.28
  4. Step 4: Simplify right side
    30,047.88x = 872,691,979.62
  5. Step 5: Solve for x
    x = 872,691,979.62/30,047.88
  6. Step 6: Final answer
    x = 29,043.38

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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.