Home / 31,700.72-47,556.48-15,913.28

Finding the Fourth Proportional to 31,700.72, 47,556.48 and 15,913.28

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Solution

The fourth proportional to 31,700.72, 47,556.48 and 15,913.28 is: 23,872.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,700.72 : 47,556.48 = 15,913.28 : x
  2. Step 2: Convert to fraction form
    31,700.72/47,556.48 = 15,913.28/x
  3. Step 3: Cross multiply
    31,700.72x = 47,556.48 × 15,913.28
  4. Step 4: Simplify right side
    31,700.72x = 756,779,582.05
  5. Step 5: Solve for x
    x = 756,779,582.05/31,700.72
  6. Step 6: Final answer
    x = 23,872.63

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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.