Home / 31,008.60-42,776.82-18,424.44

Finding the Fourth Proportional to 31,008.60, 42,776.82 and 18,424.44

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Solution

The fourth proportional to 31,008.60, 42,776.82 and 18,424.44 is: 25,416.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,008.60 : 42,776.82 = 18,424.44 : x
  2. Step 2: Convert to fraction form
    31,008.60/42,776.82 = 18,424.44/x
  3. Step 3: Cross multiply
    31,008.60x = 42,776.82 × 18,424.44
  4. Step 4: Simplify right side
    31,008.60x = 788,138,953.48
  5. Step 5: Solve for x
    x = 788,138,953.48/31,008.60
  6. Step 6: Final answer
    x = 25,416.79

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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.