Home / 28,916.10-39,910.89-18,826.98

Finding the Fourth Proportional to 28,916.10, 39,910.89 and 18,826.98

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Solution

The fourth proportional to 28,916.10, 39,910.89 and 18,826.98 is: 25,985.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,916.10 : 39,910.89 = 18,826.98 : x
  2. Step 2: Convert to fraction form
    28,916.10/39,910.89 = 18,826.98/x
  3. Step 3: Cross multiply
    28,916.10x = 39,910.89 × 18,826.98
  4. Step 4: Simplify right side
    28,916.10x = 751,401,527.81
  5. Step 5: Solve for x
    x = 751,401,527.81/28,916.10
  6. Step 6: Final answer
    x = 25,985.58

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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.