Home / 30,172.44-45,262.92-11,459.40

Finding the Fourth Proportional to 30,172.44, 45,262.92 and 11,459.40

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Solution

The fourth proportional to 30,172.44, 45,262.92 and 11,459.40 is: 17,190.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,172.44 : 45,262.92 = 11,459.40 : x
  2. Step 2: Convert to fraction form
    30,172.44/45,262.92 = 11,459.40/x
  3. Step 3: Cross multiply
    30,172.44x = 45,262.92 × 11,459.40
  4. Step 4: Simplify right side
    30,172.44x = 518,685,905.45
  5. Step 5: Solve for x
    x = 518,685,905.45/30,172.44
  6. Step 6: Final answer
    x = 17,190.72

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1.5x scale

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.