Home / 28,334.39-39,103.97-15,590.10

Finding the Fourth Proportional to 28,334.39, 39,103.97 and 15,590.10

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Solution

The fourth proportional to 28,334.39, 39,103.97 and 15,590.10 is: 21,515.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,334.39 : 39,103.97 = 15,590.10 : x
  2. Step 2: Convert to fraction form
    28,334.39/39,103.97 = 15,590.10/x
  3. Step 3: Cross multiply
    28,334.39x = 39,103.97 × 15,590.10
  4. Step 4: Simplify right side
    28,334.39x = 609,634,724.75
  5. Step 5: Solve for x
    x = 609,634,724.75/28,334.39
  6. Step 6: Final answer
    x = 21,515.72

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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.