Home / 25,535.36-35,239.64-15,465.68

Finding the Fourth Proportional to 25,535.36, 35,239.64 and 15,465.68

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Solution

The fourth proportional to 25,535.36, 35,239.64 and 15,465.68 is: 21,343.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,535.36 : 35,239.64 = 15,465.68 : x
  2. Step 2: Convert to fraction form
    25,535.36/35,239.64 = 15,465.68/x
  3. Step 3: Cross multiply
    25,535.36x = 35,239.64 × 15,465.68
  4. Step 4: Simplify right side
    25,535.36x = 545,004,995.56
  5. Step 5: Solve for x
    x = 545,004,995.56/25,535.36
  6. Step 6: Final answer
    x = 21,343.15

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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.