Home / 28,361.62-39,128.46-28,317.88

Finding the Fourth Proportional to 28,361.62, 39,128.46 and 28,317.88

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Solution

The fourth proportional to 28,361.62, 39,128.46 and 28,317.88 is: 39,068.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,361.62 : 39,128.46 = 28,317.88 : x
  2. Step 2: Convert to fraction form
    28,361.62/39,128.46 = 28,317.88/x
  3. Step 3: Cross multiply
    28,361.62x = 39,128.46 × 28,317.88
  4. Step 4: Simplify right side
    28,361.62x = 1,108,035,034.86
  5. Step 5: Solve for x
    x = 1,108,035,034.86/28,361.62
  6. Step 6: Final answer
    x = 39,068.12

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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.