Home / 28,237.14-42,368.63-12,231.57

Finding the Fourth Proportional to 28,237.14, 42,368.63 and 12,231.57

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Solution

The fourth proportional to 28,237.14, 42,368.63 and 12,231.57 is: 18,352.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,237.14 : 42,368.63 = 12,231.57 : x
  2. Step 2: Convert to fraction form
    28,237.14/42,368.63 = 12,231.57/x
  3. Step 3: Cross multiply
    28,237.14x = 42,368.63 × 12,231.57
  4. Step 4: Simplify right side
    28,237.14x = 518,234,863.65
  5. Step 5: Solve for x
    x = 518,234,863.65/28,237.14
  6. Step 6: Final answer
    x = 18,352.95

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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.