Home / 47,690.56-65,814.69-28,816.75

Finding the Fourth Proportional to 47,690.56, 65,814.69 and 28,816.75

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Solution

The fourth proportional to 47,690.56, 65,814.69 and 28,816.75 is: 39,768.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,690.56 : 65,814.69 = 28,816.75 : x
  2. Step 2: Convert to fraction form
    47,690.56/65,814.69 = 28,816.75/x
  3. Step 3: Cross multiply
    47,690.56x = 65,814.69 × 28,816.75
  4. Step 4: Simplify right side
    47,690.56x = 1,896,565,468.06
  5. Step 5: Solve for x
    x = 1,896,565,468.06/47,690.56
  6. Step 6: Final answer
    x = 39,768.15

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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.