Home / 28,199.89-42,306.66-11,559.55

Finding the Fourth Proportional to 28,199.89, 42,306.66 and 11,559.55

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Solution

The fourth proportional to 28,199.89, 42,306.66 and 11,559.55 is: 17,342.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,199.89 : 42,306.66 = 11,559.55 : x
  2. Step 2: Convert to fraction form
    28,199.89/42,306.66 = 11,559.55/x
  3. Step 3: Cross multiply
    28,199.89x = 42,306.66 × 11,559.55
  4. Step 4: Simplify right side
    28,199.89x = 489,045,740.07
  5. Step 5: Solve for x
    x = 489,045,740.07/28,199.89
  6. Step 6: Final answer
    x = 17,342.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.