Home / 15,916.80-23,877.90-4,823.40

Finding the Fourth Proportional to 15,916.80, 23,877.90 and 4,823.40

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Solution

The fourth proportional to 15,916.80, 23,877.90 and 4,823.40 is: 7,235.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,916.80 : 23,877.90 = 4,823.40 : x
  2. Step 2: Convert to fraction form
    15,916.80/23,877.90 = 4,823.40/x
  3. Step 3: Cross multiply
    15,916.80x = 23,877.90 × 4,823.40
  4. Step 4: Simplify right side
    15,916.80x = 115,172,662.86
  5. Step 5: Solve for x
    x = 115,172,662.86/15,916.80
  6. Step 6: Final answer
    x = 7,235.92

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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.