Home / 27,905.66-38,515.47-17,145.62

Finding the Fourth Proportional to 27,905.66, 38,515.47 and 17,145.62

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Solution

The fourth proportional to 27,905.66, 38,515.47 and 17,145.62 is: 23,664.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,905.66 : 38,515.47 = 17,145.62 : x
  2. Step 2: Convert to fraction form
    27,905.66/38,515.47 = 17,145.62/x
  3. Step 3: Cross multiply
    27,905.66x = 38,515.47 × 17,145.62
  4. Step 4: Simplify right side
    27,905.66x = 660,371,612.74
  5. Step 5: Solve for x
    x = 660,371,612.74/27,905.66
  6. Step 6: Final answer
    x = 23,664.43

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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.