Home / 27,377.28-37,782.87-15,443.09

Finding the Fourth Proportional to 27,377.28, 37,782.87 and 15,443.09

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Solution

The fourth proportional to 27,377.28, 37,782.87 and 15,443.09 is: 21,312.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,377.28 : 37,782.87 = 15,443.09 : x
  2. Step 2: Convert to fraction form
    27,377.28/37,782.87 = 15,443.09/x
  3. Step 3: Cross multiply
    27,377.28x = 37,782.87 × 15,443.09
  4. Step 4: Simplify right side
    27,377.28x = 583,484,261.87
  5. Step 5: Solve for x
    x = 583,484,261.87/27,377.28
  6. Step 6: Final answer
    x = 21,312.72

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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.