Home / 28,528.14-39,374.28-19,113.12

Finding the Fourth Proportional to 28,528.14, 39,374.28 and 19,113.12

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Solution

The fourth proportional to 28,528.14, 39,374.28 and 19,113.12 is: 26,379.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,528.14 : 39,374.28 = 19,113.12 : x
  2. Step 2: Convert to fraction form
    28,528.14/39,374.28 = 19,113.12/x
  3. Step 3: Cross multiply
    28,528.14x = 39,374.28 × 19,113.12
  4. Step 4: Simplify right side
    28,528.14x = 752,565,338.55
  5. Step 5: Solve for x
    x = 752,565,338.55/28,528.14
  6. Step 6: Final answer
    x = 26,379.75

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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.