Home / 21,476.31-29,645.37-12,526.62

Finding the Fourth Proportional to 21,476.31, 29,645.37 and 12,526.62

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Solution

The fourth proportional to 21,476.31, 29,645.37 and 12,526.62 is: 17,291.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,476.31 : 29,645.37 = 12,526.62 : x
  2. Step 2: Convert to fraction form
    21,476.31/29,645.37 = 12,526.62/x
  3. Step 3: Cross multiply
    21,476.31x = 29,645.37 × 12,526.62
  4. Step 4: Simplify right side
    21,476.31x = 371,356,284.75
  5. Step 5: Solve for x
    x = 371,356,284.75/21,476.31
  6. Step 6: Final answer
    x = 17,291.44

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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.