Home / 21,025.26-29,011.91-12,071.34

Finding the Fourth Proportional to 21,025.26, 29,011.91 and 12,071.34

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Solution

The fourth proportional to 21,025.26, 29,011.91 and 12,071.34 is: 16,656.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,025.26 : 29,011.91 = 12,071.34 : x
  2. Step 2: Convert to fraction form
    21,025.26/29,011.91 = 12,071.34/x
  3. Step 3: Cross multiply
    21,025.26x = 29,011.91 × 12,071.34
  4. Step 4: Simplify right side
    21,025.26x = 350,212,569.30
  5. Step 5: Solve for x
    x = 350,212,569.30/21,025.26
  6. Step 6: Final answer
    x = 16,656.75

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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.