Home / 47,790.12-65,954.06-28,670.61

Finding the Fourth Proportional to 47,790.12, 65,954.06 and 28,670.61

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Solution

The fourth proportional to 47,790.12, 65,954.06 and 28,670.61 is: 39,567.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,790.12 : 65,954.06 = 28,670.61 : x
  2. Step 2: Convert to fraction form
    47,790.12/65,954.06 = 28,670.61/x
  3. Step 3: Cross multiply
    47,790.12x = 65,954.06 × 28,670.61
  4. Step 4: Simplify right side
    47,790.12x = 1,890,942,988.82
  5. Step 5: Solve for x
    x = 1,890,942,988.82/47,790.12
  6. Step 6: Final answer
    x = 39,567.66

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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.