Home / 19,975.20-29,916.08-15,787.10

Finding the Fourth Proportional to 19,975.20, 29,916.08 and 15,787.10

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Solution

The fourth proportional to 19,975.20, 29,916.08 and 15,787.10 is: 23,643.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,975.20 : 29,916.08 = 15,787.10 : x
  2. Step 2: Convert to fraction form
    19,975.20/29,916.08 = 15,787.10/x
  3. Step 3: Cross multiply
    19,975.20x = 29,916.08 × 15,787.10
  4. Step 4: Simplify right side
    19,975.20x = 472,288,146.57
  5. Step 5: Solve for x
    x = 472,288,146.57/19,975.20
  6. Step 6: Final answer
    x = 23,643.73

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1.5x scale

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.