Home / 28,570.56-42,855.39-7,794.06

Finding the Fourth Proportional to 28,570.56, 42,855.39 and 7,794.06

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Solution

The fourth proportional to 28,570.56, 42,855.39 and 7,794.06 is: 11,690.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,570.56 : 42,855.39 = 7,794.06 : x
  2. Step 2: Convert to fraction form
    28,570.56/42,855.39 = 7,794.06/x
  3. Step 3: Cross multiply
    28,570.56x = 42,855.39 × 7,794.06
  4. Step 4: Simplify right side
    28,570.56x = 334,017,641.69
  5. Step 5: Solve for x
    x = 334,017,641.69/28,570.56
  6. Step 6: Final answer
    x = 11,690.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.