Home / 27,666.46-38,135.09-18,710.70

Finding the Fourth Proportional to 27,666.46, 38,135.09 and 18,710.70

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Solution

The fourth proportional to 27,666.46, 38,135.09 and 18,710.70 is: 25,790.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,666.46 : 38,135.09 = 18,710.70 : x
  2. Step 2: Convert to fraction form
    27,666.46/38,135.09 = 18,710.70/x
  3. Step 3: Cross multiply
    27,666.46x = 38,135.09 × 18,710.70
  4. Step 4: Simplify right side
    27,666.46x = 713,534,228.46
  5. Step 5: Solve for x
    x = 713,534,228.46/27,666.46
  6. Step 6: Final answer
    x = 25,790.59

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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.