Home / 31,322.31-43,226.55-18,583.05

Finding the Fourth Proportional to 31,322.31, 43,226.55 and 18,583.05

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Solution

The fourth proportional to 31,322.31, 43,226.55 and 18,583.05 is: 25,645.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,322.31 : 43,226.55 = 18,583.05 : x
  2. Step 2: Convert to fraction form
    31,322.31/43,226.55 = 18,583.05/x
  3. Step 3: Cross multiply
    31,322.31x = 43,226.55 × 18,583.05
  4. Step 4: Simplify right side
    31,322.31x = 803,281,139.98
  5. Step 5: Solve for x
    x = 803,281,139.98/31,322.31
  6. Step 6: Final answer
    x = 25,645.65

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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.