Home / 29,330.09-40,421.22-20,832.57

Finding the Fourth Proportional to 29,330.09, 40,421.22 and 20,832.57

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Solution

The fourth proportional to 29,330.09, 40,421.22 and 20,832.57 is: 28,710.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,330.09 : 40,421.22 = 20,832.57 : x
  2. Step 2: Convert to fraction form
    29,330.09/40,421.22 = 20,832.57/x
  3. Step 3: Cross multiply
    29,330.09x = 40,421.22 × 20,832.57
  4. Step 4: Simplify right side
    29,330.09x = 842,077,895.14
  5. Step 5: Solve for x
    x = 842,077,895.14/29,330.09
  6. Step 6: Final answer
    x = 28,710.38

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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.