Home / 28,514.59-42,799.58-20,667.58

Finding the Fourth Proportional to 28,514.59, 42,799.58 and 20,667.58

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Solution

The fourth proportional to 28,514.59, 42,799.58 and 20,667.58 is: 31,021.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,514.59 : 42,799.58 = 20,667.58 : x
  2. Step 2: Convert to fraction form
    28,514.59/42,799.58 = 20,667.58/x
  3. Step 3: Cross multiply
    28,514.59x = 42,799.58 × 20,667.58
  4. Step 4: Simplify right side
    28,514.59x = 884,563,743.62
  5. Step 5: Solve for x
    x = 884,563,743.62/28,514.59
  6. Step 6: Final answer
    x = 31,021.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.