Home / 19,570.40-27,007.68-11,619.20

Finding the Fourth Proportional to 19,570.40, 27,007.68 and 11,619.20

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Solution

The fourth proportional to 19,570.40, 27,007.68 and 11,619.20 is: 16,034.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,570.40 : 27,007.68 = 11,619.20 : x
  2. Step 2: Convert to fraction form
    19,570.40/27,007.68 = 11,619.20/x
  3. Step 3: Cross multiply
    19,570.40x = 27,007.68 × 11,619.20
  4. Step 4: Simplify right side
    19,570.40x = 313,807,635.46
  5. Step 5: Solve for x
    x = 313,807,635.46/19,570.40
  6. Step 6: Final answer
    x = 16,034.81

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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.