Home / 19,730.54-27,227.69-10,778.08

Finding the Fourth Proportional to 19,730.54, 27,227.69 and 10,778.08

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Solution

The fourth proportional to 19,730.54, 27,227.69 and 10,778.08 is: 14,873.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,730.54 : 27,227.69 = 10,778.08 : x
  2. Step 2: Convert to fraction form
    19,730.54/27,227.69 = 10,778.08/x
  3. Step 3: Cross multiply
    19,730.54x = 27,227.69 × 10,778.08
  4. Step 4: Simplify right side
    19,730.54x = 293,462,247.98
  5. Step 5: Solve for x
    x = 293,462,247.98/19,730.54
  6. Step 6: Final answer
    x = 14,873.50

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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.