Home / 27,357.12-37,754.46-15,420.96

Finding the Fourth Proportional to 27,357.12, 37,754.46 and 15,420.96

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Solution

The fourth proportional to 27,357.12, 37,754.46 and 15,420.96 is: 21,281.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,357.12 : 37,754.46 = 15,420.96 : x
  2. Step 2: Convert to fraction form
    27,357.12/37,754.46 = 15,420.96/x
  3. Step 3: Cross multiply
    27,357.12x = 37,754.46 × 15,420.96
  4. Step 4: Simplify right side
    27,357.12x = 582,210,017.48
  5. Step 5: Solve for x
    x = 582,210,017.48/27,357.12
  6. Step 6: Final answer
    x = 21,281.85

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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.