Home / 17,726.20-26,531.70-13,809.40

Finding the Fourth Proportional to 17,726.20, 26,531.70 and 13,809.40

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Solution

The fourth proportional to 17,726.20, 26,531.70 and 13,809.40 is: 20,669.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,726.20 : 26,531.70 = 13,809.40 : x
  2. Step 2: Convert to fraction form
    17,726.20/26,531.70 = 13,809.40/x
  3. Step 3: Cross multiply
    17,726.20x = 26,531.70 × 13,809.40
  4. Step 4: Simplify right side
    17,726.20x = 366,386,857.98
  5. Step 5: Solve for x
    x = 366,386,857.98/17,726.20
  6. Step 6: Final answer
    x = 20,669.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.