Home / 39,345.57-54,297.51-21,440.58

Finding the Fourth Proportional to 39,345.57, 54,297.51 and 21,440.58

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Solution

The fourth proportional to 39,345.57, 54,297.51 and 21,440.58 is: 29,588.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,345.57 : 54,297.51 = 21,440.58 : x
  2. Step 2: Convert to fraction form
    39,345.57/54,297.51 = 21,440.58/x
  3. Step 3: Cross multiply
    39,345.57x = 54,297.51 × 21,440.58
  4. Step 4: Simplify right side
    39,345.57x = 1,164,170,106.96
  5. Step 5: Solve for x
    x = 1,164,170,106.96/39,345.57
  6. Step 6: Final answer
    x = 29,588.34

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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.