Home / 21,980.58-32,972.49-7,948.95

Finding the Fourth Proportional to 21,980.58, 32,972.49 and 7,948.95

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Solution

The fourth proportional to 21,980.58, 32,972.49 and 7,948.95 is: 11,924.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,980.58 : 32,972.49 = 7,948.95 : x
  2. Step 2: Convert to fraction form
    21,980.58/32,972.49 = 7,948.95/x
  3. Step 3: Cross multiply
    21,980.58x = 32,972.49 × 7,948.95
  4. Step 4: Simplify right side
    21,980.58x = 262,096,674.39
  5. Step 5: Solve for x
    x = 262,096,674.39/21,980.58
  6. Step 6: Final answer
    x = 11,924.01

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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.