Home / 15,916.28-23,872.54-4,230.40

Finding the Fourth Proportional to 15,916.28, 23,872.54 and 4,230.40

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Solution

The fourth proportional to 15,916.28, 23,872.54 and 4,230.40 is: 6,345.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,916.28 : 23,872.54 = 4,230.40 : x
  2. Step 2: Convert to fraction form
    15,916.28/23,872.54 = 4,230.40/x
  3. Step 3: Cross multiply
    15,916.28x = 23,872.54 × 4,230.40
  4. Step 4: Simplify right side
    15,916.28x = 100,990,393.22
  5. Step 5: Solve for x
    x = 100,990,393.22/15,916.28
  6. Step 6: Final answer
    x = 6,345.10

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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.