Home / 21,798.33-30,084.75-12,726.66

Finding the Fourth Proportional to 21,798.33, 30,084.75 and 12,726.66

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Solution

The fourth proportional to 21,798.33, 30,084.75 and 12,726.66 is: 17,564.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,798.33 : 30,084.75 = 12,726.66 : x
  2. Step 2: Convert to fraction form
    21,798.33/30,084.75 = 12,726.66/x
  3. Step 3: Cross multiply
    21,798.33x = 30,084.75 × 12,726.66
  4. Step 4: Simplify right side
    21,798.33x = 382,878,384.44
  5. Step 5: Solve for x
    x = 382,878,384.44/21,798.33
  6. Step 6: Final answer
    x = 17,564.57

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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.