Home / 31,032.39-42,794.91-20,846.46

Finding the Fourth Proportional to 31,032.39, 42,794.91 and 20,846.46

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Solution

The fourth proportional to 31,032.39, 42,794.91 and 20,846.46 is: 28,748.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,032.39 : 42,794.91 = 20,846.46 : x
  2. Step 2: Convert to fraction form
    31,032.39/42,794.91 = 20,846.46/x
  3. Step 3: Cross multiply
    31,032.39x = 42,794.91 × 20,846.46
  4. Step 4: Simplify right side
    31,032.39x = 892,122,379.52
  5. Step 5: Solve for x
    x = 892,122,379.52/31,032.39
  6. Step 6: Final answer
    x = 28,748.10

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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.