Home / 27,328.76-37,713.89-15,390.98

Finding the Fourth Proportional to 27,328.76, 37,713.89 and 15,390.98

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Solution

The fourth proportional to 27,328.76, 37,713.89 and 15,390.98 is: 21,239.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,328.76 : 37,713.89 = 15,390.98 : x
  2. Step 2: Convert to fraction form
    27,328.76/37,713.89 = 15,390.98/x
  3. Step 3: Cross multiply
    27,328.76x = 37,713.89 × 15,390.98
  4. Step 4: Simplify right side
    27,328.76x = 580,453,576.62
  5. Step 5: Solve for x
    x = 580,453,576.62/27,328.76
  6. Step 6: Final answer
    x = 21,239.66

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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.