Home / 39,301.37-54,235.89-21,396.36

Finding the Fourth Proportional to 39,301.37, 54,235.89 and 21,396.36

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Solution

The fourth proportional to 39,301.37, 54,235.89 and 21,396.36 is: 29,526.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,301.37 : 54,235.89 = 21,396.36 : x
  2. Step 2: Convert to fraction form
    39,301.37/54,235.89 = 21,396.36/x
  3. Step 3: Cross multiply
    39,301.37x = 54,235.89 × 21,396.36
  4. Step 4: Simplify right side
    39,301.37x = 1,160,450,830.74
  5. Step 5: Solve for x
    x = 1,160,450,830.74/39,301.37
  6. Step 6: Final answer
    x = 29,526.98

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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.