Home / 20,057.05-30,075.21-8,807.79

Finding the Fourth Proportional to 20,057.05, 30,075.21 and 8,807.79

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Solution

The fourth proportional to 20,057.05, 30,075.21 and 8,807.79 is: 13,207.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,057.05 : 30,075.21 = 8,807.79 : x
  2. Step 2: Convert to fraction form
    20,057.05/30,075.21 = 8,807.79/x
  3. Step 3: Cross multiply
    20,057.05x = 30,075.21 × 8,807.79
  4. Step 4: Simplify right side
    20,057.05x = 264,896,133.89
  5. Step 5: Solve for x
    x = 264,896,133.89/20,057.05
  6. Step 6: Final answer
    x = 13,207.13

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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.