Home / 28,568.82-42,853.22-12,975.50

Finding the Fourth Proportional to 28,568.82, 42,853.22 and 12,975.50

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Solution

The fourth proportional to 28,568.82, 42,853.22 and 12,975.50 is: 19,463.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,568.82 : 42,853.22 = 12,975.50 : x
  2. Step 2: Convert to fraction form
    28,568.82/42,853.22 = 12,975.50/x
  3. Step 3: Cross multiply
    28,568.82x = 42,853.22 × 12,975.50
  4. Step 4: Simplify right side
    28,568.82x = 556,041,956.11
  5. Step 5: Solve for x
    x = 556,041,956.11/28,568.82
  6. Step 6: Final answer
    x = 19,463.25

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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.