Home / 21,726.36-29,987.46-14,159.61

Finding the Fourth Proportional to 21,726.36, 29,987.46 and 14,159.61

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Solution

The fourth proportional to 21,726.36, 29,987.46 and 14,159.61 is: 19,543.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,726.36 : 29,987.46 = 14,159.61 : x
  2. Step 2: Convert to fraction form
    21,726.36/29,987.46 = 14,159.61/x
  3. Step 3: Cross multiply
    21,726.36x = 29,987.46 × 14,159.61
  4. Step 4: Simplify right side
    21,726.36x = 424,610,738.49
  5. Step 5: Solve for x
    x = 424,610,738.49/21,726.36
  6. Step 6: Final answer
    x = 19,543.57

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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.