Home / 32,786.88-45,238.95-20,845.86

Finding the Fourth Proportional to 32,786.88, 45,238.95 and 20,845.86

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Solution

The fourth proportional to 32,786.88, 45,238.95 and 20,845.86 is: 28,762.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,786.88 : 45,238.95 = 20,845.86 : x
  2. Step 2: Convert to fraction form
    32,786.88/45,238.95 = 20,845.86/x
  3. Step 3: Cross multiply
    32,786.88x = 45,238.95 × 20,845.86
  4. Step 4: Simplify right side
    32,786.88x = 943,044,818.25
  5. Step 5: Solve for x
    x = 943,044,818.25/32,786.88
  6. Step 6: Final answer
    x = 28,762.87

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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.