Home / 20,133.85-27,798.61-12,583.57

Finding the Fourth Proportional to 20,133.85, 27,798.61 and 12,583.57

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Solution

The fourth proportional to 20,133.85, 27,798.61 and 12,583.57 is: 17,374.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.85 : 27,798.61 = 12,583.57 : x
  2. Step 2: Convert to fraction form
    20,133.85/27,798.61 = 12,583.57/x
  3. Step 3: Cross multiply
    20,133.85x = 27,798.61 × 12,583.57
  4. Step 4: Simplify right side
    20,133.85x = 349,805,729.60
  5. Step 5: Solve for x
    x = 349,805,729.60/20,133.85
  6. Step 6: Final answer
    x = 17,374.01

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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.