Home / 39,516.12-54,531.54-21,610.98

Finding the Fourth Proportional to 39,516.12, 54,531.54 and 21,610.98

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Solution

The fourth proportional to 39,516.12, 54,531.54 and 21,610.98 is: 29,822.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,516.12 : 54,531.54 = 21,610.98 : x
  2. Step 2: Convert to fraction form
    39,516.12/54,531.54 = 21,610.98/x
  3. Step 3: Cross multiply
    39,516.12x = 54,531.54 × 21,610.98
  4. Step 4: Simplify right side
    39,516.12x = 1,178,480,020.31
  5. Step 5: Solve for x
    x = 1,178,480,020.31/39,516.12
  6. Step 6: Final answer
    x = 29,822.77

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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.