Home / 30,637.58-42,268.77-20,033.33

Finding the Fourth Proportional to 30,637.58, 42,268.77 and 20,033.33

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Solution

The fourth proportional to 30,637.58, 42,268.77 and 20,033.33 is: 27,638.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,637.58 : 42,268.77 = 20,033.33 : x
  2. Step 2: Convert to fraction form
    30,637.58/42,268.77 = 20,033.33/x
  3. Step 3: Cross multiply
    30,637.58x = 42,268.77 × 20,033.33
  4. Step 4: Simplify right side
    30,637.58x = 846,784,006.76
  5. Step 5: Solve for x
    x = 846,784,006.76/30,637.58
  6. Step 6: Final answer
    x = 27,638.74

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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.