Home / 27,321.70-37,703.58-15,386.21

Finding the Fourth Proportional to 27,321.70, 37,703.58 and 15,386.21

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Solution

The fourth proportional to 27,321.70, 37,703.58 and 15,386.21 is: 21,232.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,321.70 : 37,703.58 = 15,386.21 : x
  2. Step 2: Convert to fraction form
    27,321.70/37,703.58 = 15,386.21/x
  3. Step 3: Cross multiply
    27,321.70x = 37,703.58 × 15,386.21
  4. Step 4: Simplify right side
    27,321.70x = 580,115,199.63
  5. Step 5: Solve for x
    x = 580,115,199.63/27,321.70
  6. Step 6: Final answer
    x = 21,232.76

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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.