Home / 31,528.32-43,526.88-20,932.44

Finding the Fourth Proportional to 31,528.32, 43,526.88 and 20,932.44

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Solution

The fourth proportional to 31,528.32, 43,526.88 and 20,932.44 is: 28,898.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,528.32 : 43,526.88 = 20,932.44 : x
  2. Step 2: Convert to fraction form
    31,528.32/43,526.88 = 20,932.44/x
  3. Step 3: Cross multiply
    31,528.32x = 43,526.88 × 20,932.44
  4. Step 4: Simplify right side
    31,528.32x = 911,123,803.99
  5. Step 5: Solve for x
    x = 911,123,803.99/31,528.32
  6. Step 6: Final answer
    x = 28,898.58

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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.