Home / 21,322.91-29,427.07-12,370.41

Finding the Fourth Proportional to 21,322.91, 29,427.07 and 12,370.41

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Solution

The fourth proportional to 21,322.91, 29,427.07 and 12,370.41 is: 17,072.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,322.91 : 29,427.07 = 12,370.41 : x
  2. Step 2: Convert to fraction form
    21,322.91/29,427.07 = 12,370.41/x
  3. Step 3: Cross multiply
    21,322.91x = 29,427.07 × 12,370.41
  4. Step 4: Simplify right side
    21,322.91x = 364,025,030.82
  5. Step 5: Solve for x
    x = 364,025,030.82/21,322.91
  6. Step 6: Final answer
    x = 17,072.01

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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.