Home / 31,647.28-47,454.90-10,579.82

Finding the Fourth Proportional to 31,647.28, 47,454.90 and 10,579.82

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Solution

The fourth proportional to 31,647.28, 47,454.90 and 10,579.82 is: 15,864.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,647.28 : 47,454.90 = 10,579.82 : x
  2. Step 2: Convert to fraction form
    31,647.28/47,454.90 = 10,579.82/x
  3. Step 3: Cross multiply
    31,647.28x = 47,454.90 × 10,579.82
  4. Step 4: Simplify right side
    31,647.28x = 502,064,300.12
  5. Step 5: Solve for x
    x = 502,064,300.12/31,647.28
  6. Step 6: Final answer
    x = 15,864.37

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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.