Home / 29,290.80-40,421.38-15,862.22

Finding the Fourth Proportional to 29,290.80, 40,421.38 and 15,862.22

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Solution

The fourth proportional to 29,290.80, 40,421.38 and 15,862.22 is: 21,889.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,290.80 : 40,421.38 = 15,862.22 : x
  2. Step 2: Convert to fraction form
    29,290.80/40,421.38 = 15,862.22/x
  3. Step 3: Cross multiply
    29,290.80x = 40,421.38 × 15,862.22
  4. Step 4: Simplify right side
    29,290.80x = 641,172,822.26
  5. Step 5: Solve for x
    x = 641,172,822.26/29,290.80
  6. Step 6: Final answer
    x = 21,889.90

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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.