Home / 28,577.30-39,435.54-16,001.78

Finding the Fourth Proportional to 28,577.30, 39,435.54 and 16,001.78

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Solution

The fourth proportional to 28,577.30, 39,435.54 and 16,001.78 is: 22,081.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,577.30 : 39,435.54 = 16,001.78 : x
  2. Step 2: Convert to fraction form
    28,577.30/39,435.54 = 16,001.78/x
  3. Step 3: Cross multiply
    28,577.30x = 39,435.54 × 16,001.78
  4. Step 4: Simplify right side
    28,577.30x = 631,038,835.26
  5. Step 5: Solve for x
    x = 631,038,835.26/28,577.30
  6. Step 6: Final answer
    x = 22,081.82

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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.