Home / 19,578.81-27,018.78-10,626.31

Finding the Fourth Proportional to 19,578.81, 27,018.78 and 10,626.31

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Solution

The fourth proportional to 19,578.81, 27,018.78 and 10,626.31 is: 14,664.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,578.81 : 27,018.78 = 10,626.31 : x
  2. Step 2: Convert to fraction form
    19,578.81/27,018.78 = 10,626.31/x
  3. Step 3: Cross multiply
    19,578.81x = 27,018.78 × 10,626.31
  4. Step 4: Simplify right side
    19,578.81x = 287,110,026.21
  5. Step 5: Solve for x
    x = 287,110,026.21/19,578.81
  6. Step 6: Final answer
    x = 14,664.32

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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.