Home / 19,578.34-27,017.72-11,080.31

Finding the Fourth Proportional to 19,578.34, 27,017.72 and 11,080.31

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Solution

The fourth proportional to 19,578.34, 27,017.72 and 11,080.31 is: 15,290.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,578.34 : 27,017.72 = 11,080.31 : x
  2. Step 2: Convert to fraction form
    19,578.34/27,017.72 = 11,080.31/x
  3. Step 3: Cross multiply
    19,578.34x = 27,017.72 × 11,080.31
  4. Step 4: Simplify right side
    19,578.34x = 299,364,605.71
  5. Step 5: Solve for x
    x = 299,364,605.71/19,578.34
  6. Step 6: Final answer
    x = 15,290.60

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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.