Home / 20,570.11-30,855.31-6,530.18

Finding the Fourth Proportional to 20,570.11, 30,855.31 and 6,530.18

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Solution

The fourth proportional to 20,570.11, 30,855.31 and 6,530.18 is: 9,795.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,570.11 : 30,855.31 = 6,530.18 : x
  2. Step 2: Convert to fraction form
    20,570.11/30,855.31 = 6,530.18/x
  3. Step 3: Cross multiply
    20,570.11x = 30,855.31 × 6,530.18
  4. Step 4: Simplify right side
    20,570.11x = 201,490,557.65
  5. Step 5: Solve for x
    x = 201,490,557.65/20,570.11
  6. Step 6: Final answer
    x = 9,795.31

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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.