Home / 19,953.60-27,530.64-12,884.16

Finding the Fourth Proportional to 19,953.60, 27,530.64 and 12,884.16

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Solution

The fourth proportional to 19,953.60, 27,530.64 and 12,884.16 is: 17,776.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,953.60 : 27,530.64 = 12,884.16 : x
  2. Step 2: Convert to fraction form
    19,953.60/27,530.64 = 12,884.16/x
  3. Step 3: Cross multiply
    19,953.60x = 27,530.64 × 12,884.16
  4. Step 4: Simplify right side
    19,953.60x = 354,709,170.66
  5. Step 5: Solve for x
    x = 354,709,170.66/19,953.60
  6. Step 6: Final answer
    x = 17,776.70

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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.