Home / 19,781.16-27,298.35-13,495.56

Finding the Fourth Proportional to 19,781.16, 27,298.35 and 13,495.56

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Solution

The fourth proportional to 19,781.16, 27,298.35 and 13,495.56 is: 18,624.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,781.16 : 27,298.35 = 13,495.56 : x
  2. Step 2: Convert to fraction form
    19,781.16/27,298.35 = 13,495.56/x
  3. Step 3: Cross multiply
    19,781.16x = 27,298.35 × 13,495.56
  4. Step 4: Simplify right side
    19,781.16x = 368,406,520.33
  5. Step 5: Solve for x
    x = 368,406,520.33/19,781.16
  6. Step 6: Final answer
    x = 18,624.11

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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.