Home / 28,580.11-39,409.74-19,506.49

Finding the Fourth Proportional to 28,580.11, 39,409.74 and 19,506.49

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Solution

The fourth proportional to 28,580.11, 39,409.74 and 19,506.49 is: 26,897.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,580.11 : 39,409.74 = 19,506.49 : x
  2. Step 2: Convert to fraction form
    28,580.11/39,409.74 = 19,506.49/x
  3. Step 3: Cross multiply
    28,580.11x = 39,409.74 × 19,506.49
  4. Step 4: Simplify right side
    28,580.11x = 768,745,600.69
  5. Step 5: Solve for x
    x = 768,745,600.69/28,580.11
  6. Step 6: Final answer
    x = 26,897.93

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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.