Home / 39,299.90-58,897.27-19,278.78

Finding the Fourth Proportional to 39,299.90, 58,897.27 and 19,278.78

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Solution

The fourth proportional to 39,299.90, 58,897.27 and 19,278.78 is: 28,892.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,299.90 : 58,897.27 = 19,278.78 : x
  2. Step 2: Convert to fraction form
    39,299.90/58,897.27 = 19,278.78/x
  3. Step 3: Cross multiply
    39,299.90x = 58,897.27 × 19,278.78
  4. Step 4: Simplify right side
    39,299.90x = 1,135,467,510.93
  5. Step 5: Solve for x
    x = 1,135,467,510.93/39,299.90
  6. Step 6: Final answer
    x = 28,892.38

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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.