Home / 20,045.77-30,075.34-6,720.08

Finding the Fourth Proportional to 20,045.77, 30,075.34 and 6,720.08

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Solution

The fourth proportional to 20,045.77, 30,075.34 and 6,720.08 is: 10,082.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,045.77 : 30,075.34 = 6,720.08 : x
  2. Step 2: Convert to fraction form
    20,045.77/30,075.34 = 6,720.08/x
  3. Step 3: Cross multiply
    20,045.77x = 30,075.34 × 6,720.08
  4. Step 4: Simplify right side
    20,045.77x = 202,108,745.24
  5. Step 5: Solve for x
    x = 202,108,745.24/20,045.77
  6. Step 6: Final answer
    x = 10,082.36

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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.