Home / 31,806.78-43,898.96-23,780.66

Finding the Fourth Proportional to 31,806.78, 43,898.96 and 23,780.66

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Solution

The fourth proportional to 31,806.78, 43,898.96 and 23,780.66 is: 32,821.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,806.78 : 43,898.96 = 23,780.66 : x
  2. Step 2: Convert to fraction form
    31,806.78/43,898.96 = 23,780.66/x
  3. Step 3: Cross multiply
    31,806.78x = 43,898.96 × 23,780.66
  4. Step 4: Simplify right side
    31,806.78x = 1,043,946,082.07
  5. Step 5: Solve for x
    x = 1,043,946,082.07/31,806.78
  6. Step 6: Final answer
    x = 32,821.50

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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.