Home / 31,563.86-47,345.79-10,787.54

Finding the Fourth Proportional to 31,563.86, 47,345.79 and 10,787.54

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Solution

The fourth proportional to 31,563.86, 47,345.79 and 10,787.54 is: 16,181.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,563.86 : 47,345.79 = 10,787.54 : x
  2. Step 2: Convert to fraction form
    31,563.86/47,345.79 = 10,787.54/x
  3. Step 3: Cross multiply
    31,563.86x = 47,345.79 × 10,787.54
  4. Step 4: Simplify right side
    31,563.86x = 510,744,603.46
  5. Step 5: Solve for x
    x = 510,744,603.46/31,563.86
  6. Step 6: Final answer
    x = 16,181.31

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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.