Home / 21,726.39-29,971.98-12,773.46

Finding the Fourth Proportional to 21,726.39, 29,971.98 and 12,773.46

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Solution

The fourth proportional to 21,726.39, 29,971.98 and 12,773.46 is: 17,621.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,726.39 : 29,971.98 = 12,773.46 : x
  2. Step 2: Convert to fraction form
    21,726.39/29,971.98 = 12,773.46/x
  3. Step 3: Cross multiply
    21,726.39x = 29,971.98 × 12,773.46
  4. Step 4: Simplify right side
    21,726.39x = 382,845,887.65
  5. Step 5: Solve for x
    x = 382,845,887.65/21,726.39
  6. Step 6: Final answer
    x = 17,621.24

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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.