Home / 28,810.29-39,773.87-19,905.66

Finding the Fourth Proportional to 28,810.29, 39,773.87 and 19,905.66

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Solution

The fourth proportional to 28,810.29, 39,773.87 and 19,905.66 is: 27,480.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,810.29 : 39,773.87 = 19,905.66 : x
  2. Step 2: Convert to fraction form
    28,810.29/39,773.87 = 19,905.66/x
  3. Step 3: Cross multiply
    28,810.29x = 39,773.87 × 19,905.66
  4. Step 4: Simplify right side
    28,810.29x = 791,725,108.22
  5. Step 5: Solve for x
    x = 791,725,108.22/28,810.29
  6. Step 6: Final answer
    x = 27,480.63

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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.