Home / 19,230.40-28,848.57-8,137.15

Finding the Fourth Proportional to 19,230.40, 28,848.57 and 8,137.15

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Solution

The fourth proportional to 19,230.40, 28,848.57 and 8,137.15 is: 12,206.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,230.40 : 28,848.57 = 8,137.15 : x
  2. Step 2: Convert to fraction form
    19,230.40/28,848.57 = 8,137.15/x
  3. Step 3: Cross multiply
    19,230.40x = 28,848.57 × 8,137.15
  4. Step 4: Simplify right side
    19,230.40x = 234,745,141.38
  5. Step 5: Solve for x
    x = 234,745,141.38/19,230.40
  6. Step 6: Final answer
    x = 12,206.98

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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.