Home / 47,814.81-65,947.36-30,821.82

Finding the Fourth Proportional to 47,814.81, 65,947.36 and 30,821.82

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Solution

The fourth proportional to 47,814.81, 65,947.36 and 30,821.82 is: 42,510.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,814.81 : 65,947.36 = 30,821.82 : x
  2. Step 2: Convert to fraction form
    47,814.81/65,947.36 = 30,821.82/x
  3. Step 3: Cross multiply
    47,814.81x = 65,947.36 × 30,821.82
  4. Step 4: Simplify right side
    47,814.81x = 2,032,617,659.40
  5. Step 5: Solve for x
    x = 2,032,617,659.40/47,814.81
  6. Step 6: Final answer
    x = 42,510.21

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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.