Home / 28,830.96-43,211.70-18,840.42

Finding the Fourth Proportional to 28,830.96, 43,211.70 and 18,840.42

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Solution

The fourth proportional to 28,830.96, 43,211.70 and 18,840.42 is: 28,237.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,830.96 : 43,211.70 = 18,840.42 : x
  2. Step 2: Convert to fraction form
    28,830.96/43,211.70 = 18,840.42/x
  3. Step 3: Cross multiply
    28,830.96x = 43,211.70 × 18,840.42
  4. Step 4: Simplify right side
    28,830.96x = 814,126,576.91
  5. Step 5: Solve for x
    x = 814,126,576.91/28,830.96
  6. Step 6: Final answer
    x = 28,237.93

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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.