Home / 21,315.36-29,404.88-16,567.12

Finding the Fourth Proportional to 21,315.36, 29,404.88 and 16,567.12

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Solution

The fourth proportional to 21,315.36, 29,404.88 and 16,567.12 is: 22,854.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,315.36 : 29,404.88 = 16,567.12 : x
  2. Step 2: Convert to fraction form
    21,315.36/29,404.88 = 16,567.12/x
  3. Step 3: Cross multiply
    21,315.36x = 29,404.88 × 16,567.12
  4. Step 4: Simplify right side
    21,315.36x = 487,154,175.55
  5. Step 5: Solve for x
    x = 487,154,175.55/21,315.36
  6. Step 6: Final answer
    x = 22,854.61

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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.