Home / 28,799.90-39,730.96-16,857.97

Finding the Fourth Proportional to 28,799.90, 39,730.96 and 16,857.97

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Solution

The fourth proportional to 28,799.90, 39,730.96 and 16,857.97 is: 23,256.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,799.90 : 39,730.96 = 16,857.97 : x
  2. Step 2: Convert to fraction form
    28,799.90/39,730.96 = 16,857.97/x
  3. Step 3: Cross multiply
    28,799.90x = 39,730.96 × 16,857.97
  4. Step 4: Simplify right side
    28,799.90x = 669,783,331.75
  5. Step 5: Solve for x
    x = 669,783,331.75/28,799.90
  6. Step 6: Final answer
    x = 23,256.45

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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.