Home / 20,571.03-28,386.54-12,073.49

Finding the Fourth Proportional to 20,571.03, 28,386.54 and 12,073.49

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Solution

The fourth proportional to 20,571.03, 28,386.54 and 12,073.49 is: 16,660.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,571.03 : 28,386.54 = 12,073.49 : x
  2. Step 2: Convert to fraction form
    20,571.03/28,386.54 = 12,073.49/x
  3. Step 3: Cross multiply
    20,571.03x = 28,386.54 × 12,073.49
  4. Step 4: Simplify right side
    20,571.03x = 342,724,677.79
  5. Step 5: Solve for x
    x = 342,724,677.79/20,571.03
  6. Step 6: Final answer
    x = 16,660.55

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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.