Home / 28,005.24-38,644.92-17,392.80

Finding the Fourth Proportional to 28,005.24, 38,644.92 and 17,392.80

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Solution

The fourth proportional to 28,005.24, 38,644.92 and 17,392.80 is: 24,000.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,005.24 : 38,644.92 = 17,392.80 : x
  2. Step 2: Convert to fraction form
    28,005.24/38,644.92 = 17,392.80/x
  3. Step 3: Cross multiply
    28,005.24x = 38,644.92 × 17,392.80
  4. Step 4: Simplify right side
    28,005.24x = 672,143,364.58
  5. Step 5: Solve for x
    x = 672,143,364.58/28,005.24
  6. Step 6: Final answer
    x = 24,000.63

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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.