Home / 40,038.83-55,249.35-22,130.94

Finding the Fourth Proportional to 40,038.83, 55,249.35 and 22,130.94

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Solution

The fourth proportional to 40,038.83, 55,249.35 and 22,130.94 is: 30,538.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,038.83 : 55,249.35 = 22,130.94 : x
  2. Step 2: Convert to fraction form
    40,038.83/55,249.35 = 22,130.94/x
  3. Step 3: Cross multiply
    40,038.83x = 55,249.35 × 22,130.94
  4. Step 4: Simplify right side
    40,038.83x = 1,222,720,049.89
  5. Step 5: Solve for x
    x = 1,222,720,049.89/40,038.83
  6. Step 6: Final answer
    x = 30,538.36

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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.