Home / 28,650.98-39,537.72-15,903.42

Finding the Fourth Proportional to 28,650.98, 39,537.72 and 15,903.42

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Solution

The fourth proportional to 28,650.98, 39,537.72 and 15,903.42 is: 21,946.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,650.98 : 39,537.72 = 15,903.42 : x
  2. Step 2: Convert to fraction form
    28,650.98/39,537.72 = 15,903.42/x
  3. Step 3: Cross multiply
    28,650.98x = 39,537.72 × 15,903.42
  4. Step 4: Simplify right side
    28,650.98x = 628,784,967.00
  5. Step 5: Solve for x
    x = 628,784,967.00/28,650.98
  6. Step 6: Final answer
    x = 21,946.37

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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.