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Finding the Fourth Proportional to 19,302.93, 28,958.65 and 10,986.86

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Solution

The fourth proportional to 19,302.93, 28,958.65 and 10,986.86 is: 16,482.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,302.93 : 28,958.65 = 10,986.86 : x
  2. Step 2: Convert to fraction form
    19,302.93/28,958.65 = 10,986.86/x
  3. Step 3: Cross multiply
    19,302.93x = 28,958.65 × 10,986.86
  4. Step 4: Simplify right side
    19,302.93x = 318,164,678.27
  5. Step 5: Solve for x
    x = 318,164,678.27/19,302.93
  6. Step 6: Final answer
    x = 16,482.71

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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.