Home / 30,288.07-41,779.81-19,684.76

Finding the Fourth Proportional to 30,288.07, 41,779.81 and 19,684.76

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Solution

The fourth proportional to 30,288.07, 41,779.81 and 19,684.76 is: 27,153.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,288.07 : 41,779.81 = 19,684.76 : x
  2. Step 2: Convert to fraction form
    30,288.07/41,779.81 = 19,684.76/x
  3. Step 3: Cross multiply
    30,288.07x = 41,779.81 × 19,684.76
  4. Step 4: Simplify right side
    30,288.07x = 822,425,532.70
  5. Step 5: Solve for x
    x = 822,425,532.70/30,288.07
  6. Step 6: Final answer
    x = 27,153.45

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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.