Home / 28,743.79-39,666.41-16,168.54

Finding the Fourth Proportional to 28,743.79, 39,666.41 and 16,168.54

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Solution

The fourth proportional to 28,743.79, 39,666.41 and 16,168.54 is: 22,312.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,743.79 : 39,666.41 = 16,168.54 : x
  2. Step 2: Convert to fraction form
    28,743.79/39,666.41 = 16,168.54/x
  3. Step 3: Cross multiply
    28,743.79x = 39,666.41 × 16,168.54
  4. Step 4: Simplify right side
    28,743.79x = 641,347,780.18
  5. Step 5: Solve for x
    x = 641,347,780.18/28,743.79
  6. Step 6: Final answer
    x = 22,312.57

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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.