Home / 39,606.21-54,656.10-21,701.16

Finding the Fourth Proportional to 39,606.21, 54,656.10 and 21,701.16

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Solution

The fourth proportional to 39,606.21, 54,656.10 and 21,701.16 is: 29,947.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,606.21 : 54,656.10 = 21,701.16 : x
  2. Step 2: Convert to fraction form
    39,606.21/54,656.10 = 21,701.16/x
  3. Step 3: Cross multiply
    39,606.21x = 54,656.10 × 21,701.16
  4. Step 4: Simplify right side
    39,606.21x = 1,186,100,771.08
  5. Step 5: Solve for x
    x = 1,186,100,771.08/39,606.21
  6. Step 6: Final answer
    x = 29,947.34

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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.