Home / 20,296.09-28,030.58-13,939.44

Finding the Fourth Proportional to 20,296.09, 28,030.58 and 13,939.44

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Solution

The fourth proportional to 20,296.09, 28,030.58 and 13,939.44 is: 19,251.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,296.09 : 28,030.58 = 13,939.44 : x
  2. Step 2: Convert to fraction form
    20,296.09/28,030.58 = 13,939.44/x
  3. Step 3: Cross multiply
    20,296.09x = 28,030.58 × 13,939.44
  4. Step 4: Simplify right side
    20,296.09x = 390,730,588.08
  5. Step 5: Solve for x
    x = 390,730,588.08/20,296.09
  6. Step 6: Final answer
    x = 19,251.52

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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.