Home / 21,464.46-29,623.59-13,507.02

Finding the Fourth Proportional to 21,464.46, 29,623.59 and 13,507.02

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Solution

The fourth proportional to 21,464.46, 29,623.59 and 13,507.02 is: 18,641.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,464.46 : 29,623.59 = 13,507.02 : x
  2. Step 2: Convert to fraction form
    21,464.46/29,623.59 = 13,507.02/x
  3. Step 3: Cross multiply
    21,464.46x = 29,623.59 × 13,507.02
  4. Step 4: Simplify right side
    21,464.46x = 400,126,422.60
  5. Step 5: Solve for x
    x = 400,126,422.60/21,464.46
  6. Step 6: Final answer
    x = 18,641.35

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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.