Home / 28,520.92-39,317.70-19,554.22

Finding the Fourth Proportional to 28,520.92, 39,317.70 and 19,554.22

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Solution

The fourth proportional to 28,520.92, 39,317.70 and 19,554.22 is: 26,956.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,520.92 : 39,317.70 = 19,554.22 : x
  2. Step 2: Convert to fraction form
    28,520.92/39,317.70 = 19,554.22/x
  3. Step 3: Cross multiply
    28,520.92x = 39,317.70 × 19,554.22
  4. Step 4: Simplify right side
    28,520.92x = 768,826,955.69
  5. Step 5: Solve for x
    x = 768,826,955.69/28,520.92
  6. Step 6: Final answer
    x = 26,956.60

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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.