Home / 47,814.84-65,947.40-30,821.85

Finding the Fourth Proportional to 47,814.84, 65,947.40 and 30,821.85

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Solution

The fourth proportional to 47,814.84, 65,947.40 and 30,821.85 is: 42,510.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,814.84 : 65,947.40 = 30,821.85 : x
  2. Step 2: Convert to fraction form
    47,814.84/65,947.40 = 30,821.85/x
  3. Step 3: Cross multiply
    47,814.84x = 65,947.40 × 30,821.85
  4. Step 4: Simplify right side
    47,814.84x = 2,032,620,758.23
  5. Step 5: Solve for x
    x = 2,032,620,758.23/47,814.84
  6. Step 6: Final answer
    x = 42,510.25

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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.