Home / 21,995.32-30,350.82-14,042.20

Finding the Fourth Proportional to 21,995.32, 30,350.82 and 14,042.20

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Solution

The fourth proportional to 21,995.32, 30,350.82 and 14,042.20 is: 19,376.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,995.32 : 30,350.82 = 14,042.20 : x
  2. Step 2: Convert to fraction form
    21,995.32/30,350.82 = 14,042.20/x
  3. Step 3: Cross multiply
    21,995.32x = 30,350.82 × 14,042.20
  4. Step 4: Simplify right side
    21,995.32x = 426,192,284.60
  5. Step 5: Solve for x
    x = 426,192,284.60/21,995.32
  6. Step 6: Final answer
    x = 19,376.50

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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.