Home / 39,410.52-54,386.66-21,505.92

Finding the Fourth Proportional to 39,410.52, 54,386.66 and 21,505.92

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Solution

The fourth proportional to 39,410.52, 54,386.66 and 21,505.92 is: 29,678.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,410.52 : 54,386.66 = 21,505.92 : x
  2. Step 2: Convert to fraction form
    39,410.52/54,386.66 = 21,505.92/x
  3. Step 3: Cross multiply
    39,410.52x = 54,386.66 × 21,505.92
  4. Step 4: Simplify right side
    39,410.52x = 1,169,635,051.50
  5. Step 5: Solve for x
    x = 1,169,635,051.50/39,410.52
  6. Step 6: Final answer
    x = 29,678.24

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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.