Home / 28,976.96-39,985.44-23,023.04

Finding the Fourth Proportional to 28,976.96, 39,985.44 and 23,023.04

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Solution

The fourth proportional to 28,976.96, 39,985.44 and 23,023.04 is: 31,769.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,976.96 : 39,985.44 = 23,023.04 : x
  2. Step 2: Convert to fraction form
    28,976.96/39,985.44 = 23,023.04/x
  3. Step 3: Cross multiply
    28,976.96x = 39,985.44 × 23,023.04
  4. Step 4: Simplify right side
    28,976.96x = 920,586,384.54
  5. Step 5: Solve for x
    x = 920,586,384.54/28,976.96
  6. Step 6: Final answer
    x = 31,769.60

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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.