Home / 28,450.89-39,262.23-15,875.64

Finding the Fourth Proportional to 28,450.89, 39,262.23 and 15,875.64

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Solution

The fourth proportional to 28,450.89, 39,262.23 and 15,875.64 is: 21,908.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,450.89 : 39,262.23 = 15,875.64 : x
  2. Step 2: Convert to fraction form
    28,450.89/39,262.23 = 15,875.64/x
  3. Step 3: Cross multiply
    28,450.89x = 39,262.23 × 15,875.64
  4. Step 4: Simplify right side
    28,450.89x = 623,313,029.08
  5. Step 5: Solve for x
    x = 623,313,029.08/28,450.89
  6. Step 6: Final answer
    x = 21,908.38

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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.