Home / 28,748.18-39,672.45-16,172.93

Finding the Fourth Proportional to 28,748.18, 39,672.45 and 16,172.93

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Solution

The fourth proportional to 28,748.18, 39,672.45 and 16,172.93 is: 22,318.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,748.18 : 39,672.45 = 16,172.93 : x
  2. Step 2: Convert to fraction form
    28,748.18/39,672.45 = 16,172.93/x
  3. Step 3: Cross multiply
    28,748.18x = 39,672.45 × 16,172.93
  4. Step 4: Simplify right side
    28,748.18x = 641,619,558.42
  5. Step 5: Solve for x
    x = 641,619,558.42/28,748.18
  6. Step 6: Final answer
    x = 22,318.62

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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.