Home / 21,995.44-30,348.48-12,435.52

Finding the Fourth Proportional to 21,995.44, 30,348.48 and 12,435.52

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Solution

The fourth proportional to 21,995.44, 30,348.48 and 12,435.52 is: 17,158.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,995.44 : 30,348.48 = 12,435.52 : x
  2. Step 2: Convert to fraction form
    21,995.44/30,348.48 = 12,435.52/x
  3. Step 3: Cross multiply
    21,995.44x = 30,348.48 × 12,435.52
  4. Step 4: Simplify right side
    21,995.44x = 377,399,130.01
  5. Step 5: Solve for x
    x = 377,399,130.01/21,995.44
  6. Step 6: Final answer
    x = 17,158.06

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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.