Home / 19,730.66-27,223.43-12,666.65

Finding the Fourth Proportional to 19,730.66, 27,223.43 and 12,666.65

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Solution

The fourth proportional to 19,730.66, 27,223.43 and 12,666.65 is: 17,476.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,730.66 : 27,223.43 = 12,666.65 : x
  2. Step 2: Convert to fraction form
    19,730.66/27,223.43 = 12,666.65/x
  3. Step 3: Cross multiply
    19,730.66x = 27,223.43 × 12,666.65
  4. Step 4: Simplify right side
    19,730.66x = 344,829,460.16
  5. Step 5: Solve for x
    x = 344,829,460.16/19,730.66
  6. Step 6: Final answer
    x = 17,476.84

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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.