Home / 39,830.73-54,967.98-21,927.40

Finding the Fourth Proportional to 39,830.73, 54,967.98 and 21,927.40

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Solution

The fourth proportional to 39,830.73, 54,967.98 and 21,927.40 is: 30,260.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,830.73 : 54,967.98 = 21,927.40 : x
  2. Step 2: Convert to fraction form
    39,830.73/54,967.98 = 21,927.40/x
  3. Step 3: Cross multiply
    39,830.73x = 54,967.98 × 21,927.40
  4. Step 4: Simplify right side
    39,830.73x = 1,205,304,775.02
  5. Step 5: Solve for x
    x = 1,205,304,775.02/39,830.73
  6. Step 6: Final answer
    x = 30,260.67

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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.