Home / 28,953.64-39,956.17-16,378.12

Finding the Fourth Proportional to 28,953.64, 39,956.17 and 16,378.12

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Solution

The fourth proportional to 28,953.64, 39,956.17 and 16,378.12 is: 22,601.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,953.64 : 39,956.17 = 16,378.12 : x
  2. Step 2: Convert to fraction form
    28,953.64/39,956.17 = 16,378.12/x
  3. Step 3: Cross multiply
    28,953.64x = 39,956.17 × 16,378.12
  4. Step 4: Simplify right side
    28,953.64x = 654,406,747.22
  5. Step 5: Solve for x
    x = 654,406,747.22/28,953.64
  6. Step 6: Final answer
    x = 22,601.89

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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.