Home / 28,970.44-39,983.48-18,361.04

Finding the Fourth Proportional to 28,970.44, 39,983.48 and 18,361.04

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Solution

The fourth proportional to 28,970.44, 39,983.48 and 18,361.04 is: 25,340.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,970.44 : 39,983.48 = 18,361.04 : x
  2. Step 2: Convert to fraction form
    28,970.44/39,983.48 = 18,361.04/x
  3. Step 3: Cross multiply
    28,970.44x = 39,983.48 × 18,361.04
  4. Step 4: Simplify right side
    28,970.44x = 734,138,275.62
  5. Step 5: Solve for x
    x = 734,138,275.62/28,970.44
  6. Step 6: Final answer
    x = 25,340.94

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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.