Home / 31,526.45-43,524.30-20,930.57

Finding the Fourth Proportional to 31,526.45, 43,524.30 and 20,930.57

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Solution

The fourth proportional to 31,526.45, 43,524.30 and 20,930.57 is: 28,896.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,526.45 : 43,524.30 = 20,930.57 : x
  2. Step 2: Convert to fraction form
    31,526.45/43,524.30 = 20,930.57/x
  3. Step 3: Cross multiply
    31,526.45x = 43,524.30 × 20,930.57
  4. Step 4: Simplify right side
    31,526.45x = 910,988,190.23
  5. Step 5: Solve for x
    x = 910,988,190.23/31,526.45
  6. Step 6: Final answer
    x = 28,896.00

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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.