Home / 38,395.80-52,985.58-21,628.44

Finding the Fourth Proportional to 38,395.80, 52,985.58 and 21,628.44

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Solution

The fourth proportional to 38,395.80, 52,985.58 and 21,628.44 is: 29,846.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,395.80 : 52,985.58 = 21,628.44 : x
  2. Step 2: Convert to fraction form
    38,395.80/52,985.58 = 21,628.44/x
  3. Step 3: Cross multiply
    38,395.80x = 52,985.58 × 21,628.44
  4. Step 4: Simplify right side
    38,395.80x = 1,145,995,437.90
  5. Step 5: Solve for x
    x = 1,145,995,437.90/38,395.80
  6. Step 6: Final answer
    x = 29,846.90

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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.