Home / 20,554.61-30,835.14-8,708.42

Finding the Fourth Proportional to 20,554.61, 30,835.14 and 8,708.42

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Solution

The fourth proportional to 20,554.61, 30,835.14 and 8,708.42 is: 13,064.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,554.61 : 30,835.14 = 8,708.42 : x
  2. Step 2: Convert to fraction form
    20,554.61/30,835.14 = 8,708.42/x
  3. Step 3: Cross multiply
    20,554.61x = 30,835.14 × 8,708.42
  4. Step 4: Simplify right side
    20,554.61x = 268,525,349.88
  5. Step 5: Solve for x
    x = 268,525,349.88/20,554.61
  6. Step 6: Final answer
    x = 13,064.00

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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.