Home / 21,158.34-29,197.44-11,726.70

Finding the Fourth Proportional to 21,158.34, 29,197.44 and 11,726.70

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Solution

The fourth proportional to 21,158.34, 29,197.44 and 11,726.70 is: 16,182.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,158.34 : 29,197.44 = 11,726.70 : x
  2. Step 2: Convert to fraction form
    21,158.34/29,197.44 = 11,726.70/x
  3. Step 3: Cross multiply
    21,158.34x = 29,197.44 × 11,726.70
  4. Step 4: Simplify right side
    21,158.34x = 342,389,619.65
  5. Step 5: Solve for x
    x = 342,389,619.65/21,158.34
  6. Step 6: Final answer
    x = 16,182.25

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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.