Home / 28,309.39-39,066.91-15,563.38

Finding the Fourth Proportional to 28,309.39, 39,066.91 and 15,563.38

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Solution

The fourth proportional to 28,309.39, 39,066.91 and 15,563.38 is: 21,477.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,309.39 : 39,066.91 = 15,563.38 : x
  2. Step 2: Convert to fraction form
    28,309.39/39,066.91 = 15,563.38/x
  3. Step 3: Cross multiply
    28,309.39x = 39,066.91 × 15,563.38
  4. Step 4: Simplify right side
    28,309.39x = 608,012,892.60
  5. Step 5: Solve for x
    x = 608,012,892.60/28,309.39
  6. Step 6: Final answer
    x = 21,477.43

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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.