Home / 25,239.22-34,825.01-15,802.31

Finding the Fourth Proportional to 25,239.22, 34,825.01 and 15,802.31

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Solution

The fourth proportional to 25,239.22, 34,825.01 and 15,802.31 is: 21,803.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,239.22 : 34,825.01 = 15,802.31 : x
  2. Step 2: Convert to fraction form
    25,239.22/34,825.01 = 15,802.31/x
  3. Step 3: Cross multiply
    25,239.22x = 34,825.01 × 15,802.31
  4. Step 4: Simplify right side
    25,239.22x = 550,315,611.82
  5. Step 5: Solve for x
    x = 550,315,611.82/25,239.22
  6. Step 6: Final answer
    x = 21,803.99

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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.