Home / 32,980.21-45,477.80-21,044.05

Finding the Fourth Proportional to 32,980.21, 45,477.80 and 21,044.05

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Solution

The fourth proportional to 32,980.21, 45,477.80 and 21,044.05 is: 29,018.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,980.21 : 45,477.80 = 21,044.05 : x
  2. Step 2: Convert to fraction form
    32,980.21/45,477.80 = 21,044.05/x
  3. Step 3: Cross multiply
    32,980.21x = 45,477.80 × 21,044.05
  4. Step 4: Simplify right side
    32,980.21x = 957,036,991.87
  5. Step 5: Solve for x
    x = 957,036,991.87/32,980.21
  6. Step 6: Final answer
    x = 29,018.52

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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.