Home / 28,355.00-39,127.64-16,419.11

Finding the Fourth Proportional to 28,355.00, 39,127.64 and 16,419.11

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Solution

The fourth proportional to 28,355.00, 39,127.64 and 16,419.11 is: 22,657.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,355.00 : 39,127.64 = 16,419.11 : x
  2. Step 2: Convert to fraction form
    28,355.00/39,127.64 = 16,419.11/x
  3. Step 3: Cross multiply
    28,355.00x = 39,127.64 × 16,419.11
  4. Step 4: Simplify right side
    28,355.00x = 642,440,747.47
  5. Step 5: Solve for x
    x = 642,440,747.47/28,355.00
  6. Step 6: Final answer
    x = 22,657.06

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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.