Home / 28,340.81-39,110.32-15,593.72

Finding the Fourth Proportional to 28,340.81, 39,110.32 and 15,593.72

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Solution

The fourth proportional to 28,340.81, 39,110.32 and 15,593.72 is: 21,519.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,340.81 : 39,110.32 = 15,593.72 : x
  2. Step 2: Convert to fraction form
    28,340.81/39,110.32 = 15,593.72/x
  3. Step 3: Cross multiply
    28,340.81x = 39,110.32 × 15,593.72
  4. Step 4: Simplify right side
    28,340.81x = 609,875,489.27
  5. Step 5: Solve for x
    x = 609,875,489.27/28,340.81
  6. Step 6: Final answer
    x = 21,519.34

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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.