Home / 30,154.93-45,200.44-10,145.36

Finding the Fourth Proportional to 30,154.93, 45,200.44 and 10,145.36

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Solution

The fourth proportional to 30,154.93, 45,200.44 and 10,145.36 is: 15,207.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,154.93 : 45,200.44 = 10,145.36 : x
  2. Step 2: Convert to fraction form
    30,154.93/45,200.44 = 10,145.36/x
  3. Step 3: Cross multiply
    30,154.93x = 45,200.44 × 10,145.36
  4. Step 4: Simplify right side
    30,154.93x = 458,574,823.60
  5. Step 5: Solve for x
    x = 458,574,823.60/30,154.93
  6. Step 6: Final answer
    x = 15,207.29

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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.