Home / 27,780.60-38,297.70-17,164.20

Finding the Fourth Proportional to 27,780.60, 38,297.70 and 17,164.20

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Solution

The fourth proportional to 27,780.60, 38,297.70 and 17,164.20 is: 23,662.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,780.60 : 38,297.70 = 17,164.20 : x
  2. Step 2: Convert to fraction form
    27,780.60/38,297.70 = 17,164.20/x
  3. Step 3: Cross multiply
    27,780.60x = 38,297.70 × 17,164.20
  4. Step 4: Simplify right side
    27,780.60x = 657,349,382.34
  5. Step 5: Solve for x
    x = 657,349,382.34/27,780.60
  6. Step 6: Final answer
    x = 23,662.17

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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.