Home / 34,768.11-47,962.31-21,999.77

Finding the Fourth Proportional to 34,768.11, 47,962.31 and 21,999.77

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Solution

The fourth proportional to 34,768.11, 47,962.31 and 21,999.77 is: 30,348.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,768.11 : 47,962.31 = 21,999.77 : x
  2. Step 2: Convert to fraction form
    34,768.11/47,962.31 = 21,999.77/x
  3. Step 3: Cross multiply
    34,768.11x = 47,962.31 × 21,999.77
  4. Step 4: Simplify right side
    34,768.11x = 1,055,159,438.86
  5. Step 5: Solve for x
    x = 1,055,159,438.86/34,768.11
  6. Step 6: Final answer
    x = 30,348.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.