Home / 21,032.26-29,019.40-12,528.92

Finding the Fourth Proportional to 21,032.26, 29,019.40 and 12,528.92

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Solution

The fourth proportional to 21,032.26, 29,019.40 and 12,528.92 is: 17,286.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,032.26 : 29,019.40 = 12,528.92 : x
  2. Step 2: Convert to fraction form
    21,032.26/29,019.40 = 12,528.92/x
  3. Step 3: Cross multiply
    21,032.26x = 29,019.40 × 12,528.92
  4. Step 4: Simplify right side
    21,032.26x = 363,581,782.27
  5. Step 5: Solve for x
    x = 363,581,782.27/21,032.26
  6. Step 6: Final answer
    x = 17,286.86

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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.