Home / 30,522.36-45,812.70-18,858.36

Finding the Fourth Proportional to 30,522.36, 45,812.70 and 18,858.36

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Solution

The fourth proportional to 30,522.36, 45,812.70 and 18,858.36 is: 28,305.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,522.36 : 45,812.70 = 18,858.36 : x
  2. Step 2: Convert to fraction form
    30,522.36/45,812.70 = 18,858.36/x
  3. Step 3: Cross multiply
    30,522.36x = 45,812.70 × 18,858.36
  4. Step 4: Simplify right side
    30,522.36x = 863,952,389.17
  5. Step 5: Solve for x
    x = 863,952,389.17/30,522.36
  6. Step 6: Final answer
    x = 28,305.56

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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.