Home / 39,537.90-54,561.80-21,632.72

Finding the Fourth Proportional to 39,537.90, 54,561.80 and 21,632.72

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Solution

The fourth proportional to 39,537.90, 54,561.80 and 21,632.72 is: 29,852.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,537.90 : 54,561.80 = 21,632.72 : x
  2. Step 2: Convert to fraction form
    39,537.90/54,561.80 = 21,632.72/x
  3. Step 3: Cross multiply
    39,537.90x = 54,561.80 × 21,632.72
  4. Step 4: Simplify right side
    39,537.90x = 1,180,319,923.37
  5. Step 5: Solve for x
    x = 1,180,319,923.37/39,537.90
  6. Step 6: Final answer
    x = 29,852.87

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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.