Home / 31,402.80-43,327.08-19,466.64

Finding the Fourth Proportional to 31,402.80, 43,327.08 and 19,466.64

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Solution

The fourth proportional to 31,402.80, 43,327.08 and 19,466.64 is: 26,858.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,402.80 : 43,327.08 = 19,466.64 : x
  2. Step 2: Convert to fraction form
    31,402.80/43,327.08 = 19,466.64/x
  3. Step 3: Cross multiply
    31,402.80x = 43,327.08 × 19,466.64
  4. Step 4: Simplify right side
    31,402.80x = 843,432,668.61
  5. Step 5: Solve for x
    x = 843,432,668.61/31,402.80
  6. Step 6: Final answer
    x = 26,858.52

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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.