Home / 19,931.92-27,503.64-11,433.60

Finding the Fourth Proportional to 19,931.92, 27,503.64 and 11,433.60

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Solution

The fourth proportional to 19,931.92, 27,503.64 and 11,433.60 is: 15,776.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,931.92 : 27,503.64 = 11,433.60 : x
  2. Step 2: Convert to fraction form
    19,931.92/27,503.64 = 11,433.60/x
  3. Step 3: Cross multiply
    19,931.92x = 27,503.64 × 11,433.60
  4. Step 4: Simplify right side
    19,931.92x = 314,465,618.30
  5. Step 5: Solve for x
    x = 314,465,618.30/19,931.92
  6. Step 6: Final answer
    x = 15,776.99

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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.