Home / 28,835.52-39,798.72-18,219.84

Finding the Fourth Proportional to 28,835.52, 39,798.72 and 18,219.84

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Solution

The fourth proportional to 28,835.52, 39,798.72 and 18,219.84 is: 25,146.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,835.52 : 39,798.72 = 18,219.84 : x
  2. Step 2: Convert to fraction form
    28,835.52/39,798.72 = 18,219.84/x
  3. Step 3: Cross multiply
    28,835.52x = 39,798.72 × 18,219.84
  4. Step 4: Simplify right side
    28,835.52x = 725,126,310.60
  5. Step 5: Solve for x
    x = 725,126,310.60/28,835.52
  6. Step 6: Final answer
    x = 25,146.98

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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.