Home / 28,925.64-43,338.88-19,420.15

Finding the Fourth Proportional to 28,925.64, 43,338.88 and 19,420.15

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Solution

The fourth proportional to 28,925.64, 43,338.88 and 19,420.15 is: 29,096.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,925.64 : 43,338.88 = 19,420.15 : x
  2. Step 2: Convert to fraction form
    28,925.64/43,338.88 = 19,420.15/x
  3. Step 3: Cross multiply
    28,925.64x = 43,338.88 × 19,420.15
  4. Step 4: Simplify right side
    28,925.64x = 841,647,550.43
  5. Step 5: Solve for x
    x = 841,647,550.43/28,925.64
  6. Step 6: Final answer
    x = 29,096.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.