Home / 39,558.29-54,590.40-21,653.14

Finding the Fourth Proportional to 39,558.29, 54,590.40 and 21,653.14

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Solution

The fourth proportional to 39,558.29, 54,590.40 and 21,653.14 is: 29,881.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,558.29 : 54,590.40 = 21,653.14 : x
  2. Step 2: Convert to fraction form
    39,558.29/54,590.40 = 21,653.14/x
  3. Step 3: Cross multiply
    39,558.29x = 54,590.40 × 21,653.14
  4. Step 4: Simplify right side
    39,558.29x = 1,182,053,300.90
  5. Step 5: Solve for x
    x = 1,182,053,300.90/39,558.29
  6. Step 6: Final answer
    x = 29,881.30

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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.