Home / 20,586.42-30,888.63-8,907.30

Finding the Fourth Proportional to 20,586.42, 30,888.63 and 8,907.30

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Solution

The fourth proportional to 20,586.42, 30,888.63 and 8,907.30 is: 13,364.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,586.42 : 30,888.63 = 8,907.30 : x
  2. Step 2: Convert to fraction form
    20,586.42/30,888.63 = 8,907.30/x
  3. Step 3: Cross multiply
    20,586.42x = 30,888.63 × 8,907.30
  4. Step 4: Simplify right side
    20,586.42x = 275,134,294.00
  5. Step 5: Solve for x
    x = 275,134,294.00/20,586.42
  6. Step 6: Final answer
    x = 13,364.84

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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.