Home / 30,143.54-45,221.98-10,154.02

Finding the Fourth Proportional to 30,143.54, 45,221.98 and 10,154.02

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Solution

The fourth proportional to 30,143.54, 45,221.98 and 10,154.02 is: 15,233.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,143.54 : 45,221.98 = 10,154.02 : x
  2. Step 2: Convert to fraction form
    30,143.54/45,221.98 = 10,154.02/x
  3. Step 3: Cross multiply
    30,143.54x = 45,221.98 × 10,154.02
  4. Step 4: Simplify right side
    30,143.54x = 459,184,889.36
  5. Step 5: Solve for x
    x = 459,184,889.36/30,143.54
  6. Step 6: Final answer
    x = 15,233.28

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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.