Home / 30,179.37-45,270-14,386.11

Finding the Fourth Proportional to 30,179.37, 45,270 and 14,386.11

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Solution

The fourth proportional to 30,179.37, 45,270 and 14,386.11 is: 21,579.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,179.37 : 45,270 = 14,386.11 : x
  2. Step 2: Convert to fraction form
    30,179.37/45,270 = 14,386.11/x
  3. Step 3: Cross multiply
    30,179.37x = 45,270 × 14,386.11
  4. Step 4: Simplify right side
    30,179.37x = 651,259,199.70
  5. Step 5: Solve for x
    x = 651,259,199.70/30,179.37
  6. Step 6: Final answer
    x = 21,579.62

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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.