Home / 30,522.60-45,812.70-18,858.60

Finding the Fourth Proportional to 30,522.60, 45,812.70 and 18,858.60

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Solution

The fourth proportional to 30,522.60, 45,812.70 and 18,858.60 is: 28,305.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,522.60 : 45,812.70 = 18,858.60 : x
  2. Step 2: Convert to fraction form
    30,522.60/45,812.70 = 18,858.60/x
  3. Step 3: Cross multiply
    30,522.60x = 45,812.70 × 18,858.60
  4. Step 4: Simplify right side
    30,522.60x = 863,963,384.22
  5. Step 5: Solve for x
    x = 863,963,384.22/30,522.60
  6. Step 6: Final answer
    x = 28,305.69

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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.