Home / 31,933.73-44,068.53-18,512.78

Finding the Fourth Proportional to 31,933.73, 44,068.53 and 18,512.78

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Solution

The fourth proportional to 31,933.73, 44,068.53 and 18,512.78 is: 25,547.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,933.73 : 44,068.53 = 18,512.78 : x
  2. Step 2: Convert to fraction form
    31,933.73/44,068.53 = 18,512.78/x
  3. Step 3: Cross multiply
    31,933.73x = 44,068.53 × 18,512.78
  4. Step 4: Simplify right side
    31,933.73x = 815,831,000.81
  5. Step 5: Solve for x
    x = 815,831,000.81/31,933.73
  6. Step 6: Final answer
    x = 25,547.63

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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.