Home / 30,028.46-45,047.84-13,388.13

Finding the Fourth Proportional to 30,028.46, 45,047.84 and 13,388.13

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Solution

The fourth proportional to 30,028.46, 45,047.84 and 13,388.13 is: 20,084.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,028.46 : 45,047.84 = 13,388.13 : x
  2. Step 2: Convert to fraction form
    30,028.46/45,047.84 = 13,388.13/x
  3. Step 3: Cross multiply
    30,028.46x = 45,047.84 × 13,388.13
  4. Step 4: Simplify right side
    30,028.46x = 603,106,271.20
  5. Step 5: Solve for x
    x = 603,106,271.20/30,028.46
  6. Step 6: Final answer
    x = 20,084.49

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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.