Home / 19,578.12-27,017.75-10,625.55

Finding the Fourth Proportional to 19,578.12, 27,017.75 and 10,625.55

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Solution

The fourth proportional to 19,578.12, 27,017.75 and 10,625.55 is: 14,663.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,578.12 : 27,017.75 = 10,625.55 : x
  2. Step 2: Convert to fraction form
    19,578.12/27,017.75 = 10,625.55/x
  3. Step 3: Cross multiply
    19,578.12x = 27,017.75 × 10,625.55
  4. Step 4: Simplify right side
    19,578.12x = 287,078,400.38
  5. Step 5: Solve for x
    x = 287,078,400.38/19,578.12
  6. Step 6: Final answer
    x = 14,663.23

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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.