Home / 28,511.74-39,344.96-15,590.77

Finding the Fourth Proportional to 28,511.74, 39,344.96 and 15,590.77

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Solution

The fourth proportional to 28,511.74, 39,344.96 and 15,590.77 is: 21,514.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,511.74 : 39,344.96 = 15,590.77 : x
  2. Step 2: Convert to fraction form
    28,511.74/39,344.96 = 15,590.77/x
  3. Step 3: Cross multiply
    28,511.74x = 39,344.96 × 15,590.77
  4. Step 4: Simplify right side
    28,511.74x = 613,418,144.07
  5. Step 5: Solve for x
    x = 613,418,144.07/28,511.74
  6. Step 6: Final answer
    x = 21,514.58

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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.