Home / 28,809.32-39,733.82-19,854.77

Finding the Fourth Proportional to 28,809.32, 39,733.82 and 19,854.77

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Solution

The fourth proportional to 28,809.32, 39,733.82 and 19,854.77 is: 27,383.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,809.32 : 39,733.82 = 19,854.77 : x
  2. Step 2: Convert to fraction form
    28,809.32/39,733.82 = 19,854.77/x
  3. Step 3: Cross multiply
    28,809.32x = 39,733.82 × 19,854.77
  4. Step 4: Simplify right side
    28,809.32x = 788,905,559.38
  5. Step 5: Solve for x
    x = 788,905,559.38/28,809.32
  6. Step 6: Final answer
    x = 27,383.70

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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.