Home / 20,554.38-30,813.06-7,397.50

Finding the Fourth Proportional to 20,554.38, 30,813.06 and 7,397.50

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Solution

The fourth proportional to 20,554.38, 30,813.06 and 7,397.50 is: 11,089.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,554.38 : 30,813.06 = 7,397.50 : x
  2. Step 2: Convert to fraction form
    20,554.38/30,813.06 = 7,397.50/x
  3. Step 3: Cross multiply
    20,554.38x = 30,813.06 × 7,397.50
  4. Step 4: Simplify right side
    20,554.38x = 227,939,611.35
  5. Step 5: Solve for x
    x = 227,939,611.35/20,554.38
  6. Step 6: Final answer
    x = 11,089.59

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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.