Home / 28,605.90-39,477.50-17,857.14

Finding the Fourth Proportional to 28,605.90, 39,477.50 and 17,857.14

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Solution

The fourth proportional to 28,605.90, 39,477.50 and 17,857.14 is: 24,643.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,605.90 : 39,477.50 = 17,857.14 : x
  2. Step 2: Convert to fraction form
    28,605.90/39,477.50 = 17,857.14/x
  3. Step 3: Cross multiply
    28,605.90x = 39,477.50 × 17,857.14
  4. Step 4: Simplify right side
    28,605.90x = 704,955,150.00
  5. Step 5: Solve for x
    x = 704,955,150.00/28,605.90
  6. Step 6: Final answer
    x = 24,643.70

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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.