Home / 28,089.54-38,762.55-15,514.02

Finding the Fourth Proportional to 28,089.54, 38,762.55 and 15,514.02

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Solution

The fourth proportional to 28,089.54, 38,762.55 and 15,514.02 is: 21,408.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,089.54 : 38,762.55 = 15,514.02 : x
  2. Step 2: Convert to fraction form
    28,089.54/38,762.55 = 15,514.02/x
  3. Step 3: Cross multiply
    28,089.54x = 38,762.55 × 15,514.02
  4. Step 4: Simplify right side
    28,089.54x = 601,362,975.95
  5. Step 5: Solve for x
    x = 601,362,975.95/28,089.54
  6. Step 6: Final answer
    x = 21,408.79

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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.