Home / 21,643.23-29,867.67-11,952.71

Finding the Fourth Proportional to 21,643.23, 29,867.67 and 11,952.71

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Solution

The fourth proportional to 21,643.23, 29,867.67 and 11,952.71 is: 16,494.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,643.23 : 29,867.67 = 11,952.71 : x
  2. Step 2: Convert to fraction form
    21,643.23/29,867.67 = 11,952.71/x
  3. Step 3: Cross multiply
    21,643.23x = 29,867.67 × 11,952.71
  4. Step 4: Simplify right side
    21,643.23x = 356,999,448.55
  5. Step 5: Solve for x
    x = 356,999,448.55/21,643.23
  6. Step 6: Final answer
    x = 16,494.74

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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.