Home / 19,730.64-27,228.48-10,778.22

Finding the Fourth Proportional to 19,730.64, 27,228.48 and 10,778.22

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Solution

The fourth proportional to 19,730.64, 27,228.48 and 10,778.22 is: 14,874.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,730.64 : 27,228.48 = 10,778.22 : x
  2. Step 2: Convert to fraction form
    19,730.64/27,228.48 = 10,778.22/x
  3. Step 3: Cross multiply
    19,730.64x = 27,228.48 × 10,778.22
  4. Step 4: Simplify right side
    19,730.64x = 293,474,547.71
  5. Step 5: Solve for x
    x = 293,474,547.71/19,730.64
  6. Step 6: Final answer
    x = 14,874.05

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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.