Home / 28,817.14-43,056.56-28,290.21

Finding the Fourth Proportional to 28,817.14, 43,056.56 and 28,290.21

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Solution

The fourth proportional to 28,817.14, 43,056.56 and 28,290.21 is: 42,269.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,817.14 : 43,056.56 = 28,290.21 : x
  2. Step 2: Convert to fraction form
    28,817.14/43,056.56 = 28,290.21/x
  3. Step 3: Cross multiply
    28,817.14x = 43,056.56 × 28,290.21
  4. Step 4: Simplify right side
    28,817.14x = 1,218,079,275.73
  5. Step 5: Solve for x
    x = 1,218,079,275.73/28,817.14
  6. Step 6: Final answer
    x = 42,269.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.