Home / 21,371.76-29,486.52-12,417.48

Finding the Fourth Proportional to 21,371.76, 29,486.52 and 12,417.48

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Solution

The fourth proportional to 21,371.76, 29,486.52 and 12,417.48 is: 17,132.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,371.76 : 29,486.52 = 12,417.48 : x
  2. Step 2: Convert to fraction form
    21,371.76/29,486.52 = 12,417.48/x
  3. Step 3: Cross multiply
    21,371.76x = 29,486.52 × 12,417.48
  4. Step 4: Simplify right side
    21,371.76x = 366,148,272.37
  5. Step 5: Solve for x
    x = 366,148,272.37/21,371.76
  6. Step 6: Final answer
    x = 17,132.34

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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.