Home / 29,291.63-40,422.49-15,862.91

Finding the Fourth Proportional to 29,291.63, 40,422.49 and 15,862.91

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Solution

The fourth proportional to 29,291.63, 40,422.49 and 15,862.91 is: 21,890.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,291.63 : 40,422.49 = 15,862.91 : x
  2. Step 2: Convert to fraction form
    29,291.63/40,422.49 = 15,862.91/x
  3. Step 3: Cross multiply
    29,291.63x = 40,422.49 × 15,862.91
  4. Step 4: Simplify right side
    29,291.63x = 641,218,395.68
  5. Step 5: Solve for x
    x = 641,218,395.68/29,291.63
  6. Step 6: Final answer
    x = 21,890.84

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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.