Home / 27,378.77-37,783.26-15,439.82

Finding the Fourth Proportional to 27,378.77, 37,783.26 and 15,439.82

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Solution

The fourth proportional to 27,378.77, 37,783.26 and 15,439.82 is: 21,307.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,378.77 : 37,783.26 = 15,439.82 : x
  2. Step 2: Convert to fraction form
    27,378.77/37,783.26 = 15,439.82/x
  3. Step 3: Cross multiply
    27,378.77x = 37,783.26 × 15,439.82
  4. Step 4: Simplify right side
    27,378.77x = 583,366,544.50
  5. Step 5: Solve for x
    x = 583,366,544.50/27,378.77
  6. Step 6: Final answer
    x = 21,307.26

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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.