Home / 20,559.57-28,372.73-12,606.18

Finding the Fourth Proportional to 20,559.57, 28,372.73 and 12,606.18

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Solution

The fourth proportional to 20,559.57, 28,372.73 and 12,606.18 is: 17,396.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.57 : 28,372.73 = 12,606.18 : x
  2. Step 2: Convert to fraction form
    20,559.57/28,372.73 = 12,606.18/x
  3. Step 3: Cross multiply
    20,559.57x = 28,372.73 × 12,606.18
  4. Step 4: Simplify right side
    20,559.57x = 357,671,678.44
  5. Step 5: Solve for x
    x = 357,671,678.44/20,559.57
  6. Step 6: Final answer
    x = 17,396.85

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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.