Home / 28,634.99-39,514.91-15,888.02

Finding the Fourth Proportional to 28,634.99, 39,514.91 and 15,888.02

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Solution

The fourth proportional to 28,634.99, 39,514.91 and 15,888.02 is: 21,924.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,634.99 : 39,514.91 = 15,888.02 : x
  2. Step 2: Convert to fraction form
    28,634.99/39,514.91 = 15,888.02/x
  3. Step 3: Cross multiply
    28,634.99x = 39,514.91 × 15,888.02
  4. Step 4: Simplify right side
    28,634.99x = 627,813,818.89
  5. Step 5: Solve for x
    x = 627,813,818.89/28,634.99
  6. Step 6: Final answer
    x = 21,924.71

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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.