Home / 28,798.99-39,755.94-20,308.03

Finding the Fourth Proportional to 28,798.99, 39,755.94 and 20,308.03

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Solution

The fourth proportional to 28,798.99, 39,755.94 and 20,308.03 is: 28,034.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,798.99 : 39,755.94 = 20,308.03 : x
  2. Step 2: Convert to fraction form
    28,798.99/39,755.94 = 20,308.03/x
  3. Step 3: Cross multiply
    28,798.99x = 39,755.94 × 20,308.03
  4. Step 4: Simplify right side
    28,798.99x = 807,364,822.20
  5. Step 5: Solve for x
    x = 807,364,822.20/28,798.99
  6. Step 6: Final answer
    x = 28,034.48

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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.