Home / 25,384.51-35,031.11-15,186.04

Finding the Fourth Proportional to 25,384.51, 35,031.11 and 15,186.04

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Solution

The fourth proportional to 25,384.51, 35,031.11 and 15,186.04 is: 20,957.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,384.51 : 35,031.11 = 15,186.04 : x
  2. Step 2: Convert to fraction form
    25,384.51/35,031.11 = 15,186.04/x
  3. Step 3: Cross multiply
    25,384.51x = 35,031.11 × 15,186.04
  4. Step 4: Simplify right side
    25,384.51x = 531,983,705.50
  5. Step 5: Solve for x
    x = 531,983,705.50/25,384.51
  6. Step 6: Final answer
    x = 20,957.02

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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.