Home / 21,276.66-29,359.22-12,322.92

Finding the Fourth Proportional to 21,276.66, 29,359.22 and 12,322.92

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Solution

The fourth proportional to 21,276.66, 29,359.22 and 12,322.92 is: 17,004.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276.66 : 29,359.22 = 12,322.92 : x
  2. Step 2: Convert to fraction form
    21,276.66/29,359.22 = 12,322.92/x
  3. Step 3: Cross multiply
    21,276.66x = 29,359.22 × 12,322.92
  4. Step 4: Simplify right side
    21,276.66x = 361,791,319.32
  5. Step 5: Solve for x
    x = 361,791,319.32/21,276.66
  6. Step 6: Final answer
    x = 17,004.14

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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.