Home / 28,689.61-43,024.74-10,916.05

Finding the Fourth Proportional to 28,689.61, 43,024.74 and 10,916.05

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Solution

The fourth proportional to 28,689.61, 43,024.74 and 10,916.05 is: 16,370.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,689.61 : 43,024.74 = 10,916.05 : x
  2. Step 2: Convert to fraction form
    28,689.61/43,024.74 = 10,916.05/x
  3. Step 3: Cross multiply
    28,689.61x = 43,024.74 × 10,916.05
  4. Step 4: Simplify right side
    28,689.61x = 469,660,213.08
  5. Step 5: Solve for x
    x = 469,660,213.08/28,689.61
  6. Step 6: Final answer
    x = 16,370.39

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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.