Home / 19,975.69-29,916.85-15,787.59

Finding the Fourth Proportional to 19,975.69, 29,916.85 and 15,787.59

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Solution

The fourth proportional to 19,975.69, 29,916.85 and 15,787.59 is: 23,644.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,975.69 : 29,916.85 = 15,787.59 : x
  2. Step 2: Convert to fraction form
    19,975.69/29,916.85 = 15,787.59/x
  3. Step 3: Cross multiply
    19,975.69x = 29,916.85 × 15,787.59
  4. Step 4: Simplify right side
    19,975.69x = 472,314,961.89
  5. Step 5: Solve for x
    x = 472,314,961.89/19,975.69
  6. Step 6: Final answer
    x = 23,644.49

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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.