Home / 39,487.74-54,494.33-21,582.35

Finding the Fourth Proportional to 39,487.74, 54,494.33 and 21,582.35

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Solution

The fourth proportional to 39,487.74, 54,494.33 and 21,582.35 is: 29,784.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,487.74 : 54,494.33 = 21,582.35 : x
  2. Step 2: Convert to fraction form
    39,487.74/54,494.33 = 21,582.35/x
  3. Step 3: Cross multiply
    39,487.74x = 54,494.33 × 21,582.35
  4. Step 4: Simplify right side
    39,487.74x = 1,176,115,322.69
  5. Step 5: Solve for x
    x = 1,176,115,322.69/39,487.74
  6. Step 6: Final answer
    x = 29,784.32

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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.