Home / 39,440.93-54,429.30-21,536.69

Finding the Fourth Proportional to 39,440.93, 54,429.30 and 21,536.69

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Solution

The fourth proportional to 39,440.93, 54,429.30 and 21,536.69 is: 29,721.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,440.93 : 54,429.30 = 21,536.69 : x
  2. Step 2: Convert to fraction form
    39,440.93/54,429.30 = 21,536.69/x
  3. Step 3: Cross multiply
    39,440.93x = 54,429.30 × 21,536.69
  4. Step 4: Simplify right side
    39,440.93x = 1,172,226,688.87
  5. Step 5: Solve for x
    x = 1,172,226,688.87/39,440.93
  6. Step 6: Final answer
    x = 29,721.07

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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.