Home / 20,586.03-28,409.09-12,625.35

Finding the Fourth Proportional to 20,586.03, 28,409.09 and 12,625.35

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Solution

The fourth proportional to 20,586.03, 28,409.09 and 12,625.35 is: 17,423.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,586.03 : 28,409.09 = 12,625.35 : x
  2. Step 2: Convert to fraction form
    20,586.03/28,409.09 = 12,625.35/x
  3. Step 3: Cross multiply
    20,586.03x = 28,409.09 × 12,625.35
  4. Step 4: Simplify right side
    20,586.03x = 358,674,704.43
  5. Step 5: Solve for x
    x = 358,674,704.43/20,586.03
  6. Step 6: Final answer
    x = 17,423.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.