Home / 21,070.26-29,080.35-12,572.82

Finding the Fourth Proportional to 21,070.26, 29,080.35 and 12,572.82

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Solution

The fourth proportional to 21,070.26, 29,080.35 and 12,572.82 is: 17,352.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,070.26 : 29,080.35 = 12,572.82 : x
  2. Step 2: Convert to fraction form
    21,070.26/29,080.35 = 12,572.82/x
  3. Step 3: Cross multiply
    21,070.26x = 29,080.35 × 12,572.82
  4. Step 4: Simplify right side
    21,070.26x = 365,622,006.09
  5. Step 5: Solve for x
    x = 365,622,006.09/21,070.26
  6. Step 6: Final answer
    x = 17,352.52

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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.