Home / 25,889.11-35,739-19,518.28

Finding the Fourth Proportional to 25,889.11, 35,739 and 19,518.28

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Solution

The fourth proportional to 25,889.11, 35,739 and 19,518.28 is: 26,944.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,889.11 : 35,739 = 19,518.28 : x
  2. Step 2: Convert to fraction form
    25,889.11/35,739 = 19,518.28/x
  3. Step 3: Cross multiply
    25,889.11x = 35,739 × 19,518.28
  4. Step 4: Simplify right side
    25,889.11x = 697,563,808.92
  5. Step 5: Solve for x
    x = 697,563,808.92/25,889.11
  6. Step 6: Final answer
    x = 26,944.29

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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.