Home / 31,494.21-43,447.95-21,281.94

Finding the Fourth Proportional to 31,494.21, 43,447.95 and 21,281.94

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Solution

The fourth proportional to 31,494.21, 43,447.95 and 21,281.94 is: 29,359.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,494.21 : 43,447.95 = 21,281.94 : x
  2. Step 2: Convert to fraction form
    31,494.21/43,447.95 = 21,281.94/x
  3. Step 3: Cross multiply
    31,494.21x = 43,447.95 × 21,281.94
  4. Step 4: Simplify right side
    31,494.21x = 924,656,665.02
  5. Step 5: Solve for x
    x = 924,656,665.02/31,494.21
  6. Step 6: Final answer
    x = 29,359.58

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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.