Home / 28,031.42-38,689.40-16,101.33

Finding the Fourth Proportional to 28,031.42, 38,689.40 and 16,101.33

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Solution

The fourth proportional to 28,031.42, 38,689.40 and 16,101.33 is: 22,223.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,031.42 : 38,689.40 = 16,101.33 : x
  2. Step 2: Convert to fraction form
    28,031.42/38,689.40 = 16,101.33/x
  3. Step 3: Cross multiply
    28,031.42x = 38,689.40 × 16,101.33
  4. Step 4: Simplify right side
    28,031.42x = 622,950,819.13
  5. Step 5: Solve for x
    x = 622,950,819.13/28,031.42
  6. Step 6: Final answer
    x = 22,223.31

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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.