Home / 40,612.89-56,028.81-31,644.82

Finding the Fourth Proportional to 40,612.89, 56,028.81 and 31,644.82

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Solution

The fourth proportional to 40,612.89, 56,028.81 and 31,644.82 is: 43,656.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,612.89 : 56,028.81 = 31,644.82 : x
  2. Step 2: Convert to fraction form
    40,612.89/56,028.81 = 31,644.82/x
  3. Step 3: Cross multiply
    40,612.89x = 56,028.81 × 31,644.82
  4. Step 4: Simplify right side
    40,612.89x = 1,773,021,607.26
  5. Step 5: Solve for x
    x = 1,773,021,607.26/40,612.89
  6. Step 6: Final answer
    x = 43,656.62

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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.