Home / 20,218.06-30,307.65-10,361.98

Finding the Fourth Proportional to 20,218.06, 30,307.65 and 10,361.98

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Solution

The fourth proportional to 20,218.06, 30,307.65 and 10,361.98 is: 15,533.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,218.06 : 30,307.65 = 10,361.98 : x
  2. Step 2: Convert to fraction form
    20,218.06/30,307.65 = 10,361.98/x
  3. Step 3: Cross multiply
    20,218.06x = 30,307.65 × 10,361.98
  4. Step 4: Simplify right side
    20,218.06x = 314,047,263.15
  5. Step 5: Solve for x
    x = 314,047,263.15/20,218.06
  6. Step 6: Final answer
    x = 15,533.01

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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.