Home / 28,905.16-39,893.36-16,975.04

Finding the Fourth Proportional to 28,905.16, 39,893.36 and 16,975.04

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Solution

The fourth proportional to 28,905.16, 39,893.36 and 16,975.04 is: 23,428.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,905.16 : 39,893.36 = 16,975.04 : x
  2. Step 2: Convert to fraction form
    28,905.16/39,893.36 = 16,975.04/x
  3. Step 3: Cross multiply
    28,905.16x = 39,893.36 × 16,975.04
  4. Step 4: Simplify right side
    28,905.16x = 677,191,381.73
  5. Step 5: Solve for x
    x = 677,191,381.73/28,905.16
  6. Step 6: Final answer
    x = 23,428.04

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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.