Home / 25,779.40-35,592.71-19,800.38

Finding the Fourth Proportional to 25,779.40, 35,592.71 and 19,800.38

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Solution

The fourth proportional to 25,779.40, 35,592.71 and 19,800.38 is: 27,337.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,779.40 : 35,592.71 = 19,800.38 : x
  2. Step 2: Convert to fraction form
    25,779.40/35,592.71 = 19,800.38/x
  3. Step 3: Cross multiply
    25,779.40x = 35,592.71 × 19,800.38
  4. Step 4: Simplify right side
    25,779.40x = 704,749,183.23
  5. Step 5: Solve for x
    x = 704,749,183.23/25,779.40
  6. Step 6: Final answer
    x = 27,337.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.