Home / 43,005-64,519.80-21,927.78

Finding the Fourth Proportional to 43,005, 64,519.80 and 21,927.78

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Solution

The fourth proportional to 43,005, 64,519.80 and 21,927.78 is: 32,897.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,005 : 64,519.80 = 21,927.78 : x
  2. Step 2: Convert to fraction form
    43,005/64,519.80 = 21,927.78/x
  3. Step 3: Cross multiply
    43,005x = 64,519.80 × 21,927.78
  4. Step 4: Simplify right side
    43,005x = 1,414,775,980.04
  5. Step 5: Solve for x
    x = 1,414,775,980.04/43,005
  6. Step 6: Final answer
    x = 32,897.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.