Home / 21,465.46-29,624.97-13,508.02

Finding the Fourth Proportional to 21,465.46, 29,624.97 and 13,508.02

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Solution

The fourth proportional to 21,465.46, 29,624.97 and 13,508.02 is: 18,642.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,465.46 : 29,624.97 = 13,508.02 : x
  2. Step 2: Convert to fraction form
    21,465.46/29,624.97 = 13,508.02/x
  3. Step 3: Cross multiply
    21,465.46x = 29,624.97 × 13,508.02
  4. Step 4: Simplify right side
    21,465.46x = 400,174,687.26
  5. Step 5: Solve for x
    x = 400,174,687.26/21,465.46
  6. Step 6: Final answer
    x = 18,642.73

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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.