Home / 31,851.86-47,771.51-30,271.28

Finding the Fourth Proportional to 31,851.86, 47,771.51 and 30,271.28

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Solution

The fourth proportional to 31,851.86, 47,771.51 and 30,271.28 is: 45,400.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,851.86 : 47,771.51 = 30,271.28 : x
  2. Step 2: Convert to fraction form
    31,851.86/47,771.51 = 30,271.28/x
  3. Step 3: Cross multiply
    31,851.86x = 47,771.51 × 30,271.28
  4. Step 4: Simplify right side
    31,851.86x = 1,446,104,365.02
  5. Step 5: Solve for x
    x = 1,446,104,365.02/31,851.86
  6. Step 6: Final answer
    x = 45,400.95

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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.