Home / 21,293.83-29,386.08-11,862.40

Finding the Fourth Proportional to 21,293.83, 29,386.08 and 11,862.40

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Solution

The fourth proportional to 21,293.83, 29,386.08 and 11,862.40 is: 16,370.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,293.83 : 29,386.08 = 11,862.40 : x
  2. Step 2: Convert to fraction form
    21,293.83/29,386.08 = 11,862.40/x
  3. Step 3: Cross multiply
    21,293.83x = 29,386.08 × 11,862.40
  4. Step 4: Simplify right side
    21,293.83x = 348,589,229.15
  5. Step 5: Solve for x
    x = 348,589,229.15/21,293.83
  6. Step 6: Final answer
    x = 16,370.43

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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.