Home / 39,637.08-54,698.77-21,732.05

Finding the Fourth Proportional to 39,637.08, 54,698.77 and 21,732.05

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Solution

The fourth proportional to 39,637.08, 54,698.77 and 21,732.05 is: 29,990.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,637.08 : 54,698.77 = 21,732.05 : x
  2. Step 2: Convert to fraction form
    39,637.08/54,698.77 = 21,732.05/x
  3. Step 3: Cross multiply
    39,637.08x = 54,698.77 × 21,732.05
  4. Step 4: Simplify right side
    39,637.08x = 1,188,716,404.58
  5. Step 5: Solve for x
    x = 1,188,716,404.58/39,637.08
  6. Step 6: Final answer
    x = 29,990.01

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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.