Home / 29,338.12-40,485.99-15,908.86

Finding the Fourth Proportional to 29,338.12, 40,485.99 and 15,908.86

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Solution

The fourth proportional to 29,338.12, 40,485.99 and 15,908.86 is: 21,953.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,338.12 : 40,485.99 = 15,908.86 : x
  2. Step 2: Convert to fraction form
    29,338.12/40,485.99 = 15,908.86/x
  3. Step 3: Cross multiply
    29,338.12x = 40,485.99 × 15,908.86
  4. Step 4: Simplify right side
    29,338.12x = 644,085,946.87
  5. Step 5: Solve for x
    x = 644,085,946.87/29,338.12
  6. Step 6: Final answer
    x = 21,953.89

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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.