Home / 28,668.83-39,565.49-15,924.47

Finding the Fourth Proportional to 28,668.83, 39,565.49 and 15,924.47

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Solution

The fourth proportional to 28,668.83, 39,565.49 and 15,924.47 is: 21,977.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,668.83 : 39,565.49 = 15,924.47 : x
  2. Step 2: Convert to fraction form
    28,668.83/39,565.49 = 15,924.47/x
  3. Step 3: Cross multiply
    28,668.83x = 39,565.49 × 15,924.47
  4. Step 4: Simplify right side
    28,668.83x = 630,059,181.09
  5. Step 5: Solve for x
    x = 630,059,181.09/28,668.83
  6. Step 6: Final answer
    x = 21,977.15

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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.