Home / 39,801.24-54,925.94-21,898.12

Finding the Fourth Proportional to 39,801.24, 54,925.94 and 21,898.12

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Solution

The fourth proportional to 39,801.24, 54,925.94 and 21,898.12 is: 30,219.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,801.24 : 54,925.94 = 21,898.12 : x
  2. Step 2: Convert to fraction form
    39,801.24/54,925.94 = 21,898.12/x
  3. Step 3: Cross multiply
    39,801.24x = 54,925.94 × 21,898.12
  4. Step 4: Simplify right side
    39,801.24x = 1,202,774,825.23
  5. Step 5: Solve for x
    x = 1,202,774,825.23/39,801.24
  6. Step 6: Final answer
    x = 30,219.53

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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.