Home / 47,589.84-65,687.49-28,728.18

Finding the Fourth Proportional to 47,589.84, 65,687.49 and 28,728.18

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Solution

The fourth proportional to 47,589.84, 65,687.49 and 28,728.18 is: 39,653.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,589.84 : 65,687.49 = 28,728.18 : x
  2. Step 2: Convert to fraction form
    47,589.84/65,687.49 = 28,728.18/x
  3. Step 3: Cross multiply
    47,589.84x = 65,687.49 × 28,728.18
  4. Step 4: Simplify right side
    47,589.84x = 1,887,082,036.47
  5. Step 5: Solve for x
    x = 1,887,082,036.47/47,589.84
  6. Step 6: Final answer
    x = 39,653.04

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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.