Home / 19,865.42-27,410.40-11,370.14

Finding the Fourth Proportional to 19,865.42, 27,410.40 and 11,370.14

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Solution

The fourth proportional to 19,865.42, 27,410.40 and 11,370.14 is: 15,688.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,865.42 : 27,410.40 = 11,370.14 : x
  2. Step 2: Convert to fraction form
    19,865.42/27,410.40 = 11,370.14/x
  3. Step 3: Cross multiply
    19,865.42x = 27,410.40 × 11,370.14
  4. Step 4: Simplify right side
    19,865.42x = 311,660,085.46
  5. Step 5: Solve for x
    x = 311,660,085.46/19,865.42
  6. Step 6: Final answer
    x = 15,688.57

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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.