Home / 31,776.05-43,845.95-18,344.76

Finding the Fourth Proportional to 31,776.05, 43,845.95 and 18,344.76

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Solution

The fourth proportional to 31,776.05, 43,845.95 and 18,344.76 is: 25,312.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,776.05 : 43,845.95 = 18,344.76 : x
  2. Step 2: Convert to fraction form
    31,776.05/43,845.95 = 18,344.76/x
  3. Step 3: Cross multiply
    31,776.05x = 43,845.95 × 18,344.76
  4. Step 4: Simplify right side
    31,776.05x = 804,343,338.00
  5. Step 5: Solve for x
    x = 804,343,338.00/31,776.05
  6. Step 6: Final answer
    x = 25,312.88

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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.