Home / 21,033.76-29,029.74-13,862.68

Finding the Fourth Proportional to 21,033.76, 29,029.74 and 13,862.68

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Solution

The fourth proportional to 21,033.76, 29,029.74 and 13,862.68 is: 19,132.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,033.76 : 29,029.74 = 13,862.68 : x
  2. Step 2: Convert to fraction form
    21,033.76/29,029.74 = 13,862.68/x
  3. Step 3: Cross multiply
    21,033.76x = 29,029.74 × 13,862.68
  4. Step 4: Simplify right side
    21,033.76x = 402,429,996.10
  5. Step 5: Solve for x
    x = 402,429,996.10/21,033.76
  6. Step 6: Final answer
    x = 19,132.58

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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.