Home / 39,423.58-54,402.22-21,514.98

Finding the Fourth Proportional to 39,423.58, 54,402.22 and 21,514.98

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Solution

The fourth proportional to 39,423.58, 54,402.22 and 21,514.98 is: 29,689.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,423.58 : 54,402.22 = 21,514.98 : x
  2. Step 2: Convert to fraction form
    39,423.58/54,402.22 = 21,514.98/x
  3. Step 3: Cross multiply
    39,423.58x = 54,402.22 × 21,514.98
  4. Step 4: Simplify right side
    39,423.58x = 1,170,462,675.26
  5. Step 5: Solve for x
    x = 1,170,462,675.26/39,423.58
  6. Step 6: Final answer
    x = 29,689.41

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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.