Home / 29,338.11-40,485.47-15,909.12

Finding the Fourth Proportional to 29,338.11, 40,485.47 and 15,909.12

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Solution

The fourth proportional to 29,338.11, 40,485.47 and 15,909.12 is: 21,953.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,338.11 : 40,485.47 = 15,909.12 : x
  2. Step 2: Convert to fraction form
    29,338.11/40,485.47 = 15,909.12/x
  3. Step 3: Cross multiply
    29,338.11x = 40,485.47 × 15,909.12
  4. Step 4: Simplify right side
    29,338.11x = 644,088,120.94
  5. Step 5: Solve for x
    x = 644,088,120.94/29,338.11
  6. Step 6: Final answer
    x = 21,953.97

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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.