Home / 19,235.70-28,853.55-12,669.30

Finding the Fourth Proportional to 19,235.70, 28,853.55 and 12,669.30

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Solution

The fourth proportional to 19,235.70, 28,853.55 and 12,669.30 is: 19,003.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,235.70 : 28,853.55 = 12,669.30 : x
  2. Step 2: Convert to fraction form
    19,235.70/28,853.55 = 12,669.30/x
  3. Step 3: Cross multiply
    19,235.70x = 28,853.55 × 12,669.30
  4. Step 4: Simplify right side
    19,235.70x = 365,554,281.02
  5. Step 5: Solve for x
    x = 365,554,281.02/19,235.70
  6. Step 6: Final answer
    x = 19,003.95

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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.