Home / 28,779.84-43,174.80-13,199.04

Finding the Fourth Proportional to 28,779.84, 43,174.80 and 13,199.04

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Solution

The fourth proportional to 28,779.84, 43,174.80 and 13,199.04 is: 19,800.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,779.84 : 43,174.80 = 13,199.04 : x
  2. Step 2: Convert to fraction form
    28,779.84/43,174.80 = 13,199.04/x
  3. Step 3: Cross multiply
    28,779.84x = 43,174.80 × 13,199.04
  4. Step 4: Simplify right side
    28,779.84x = 569,865,912.19
  5. Step 5: Solve for x
    x = 569,865,912.19/28,779.84
  6. Step 6: Final answer
    x = 19,800.87

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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.