Home / 31,905.99-47,857.32-9,718.92

Finding the Fourth Proportional to 31,905.99, 47,857.32 and 9,718.92

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Solution

The fourth proportional to 31,905.99, 47,857.32 and 9,718.92 is: 14,577.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,905.99 : 47,857.32 = 9,718.92 : x
  2. Step 2: Convert to fraction form
    31,905.99/47,857.32 = 9,718.92/x
  3. Step 3: Cross multiply
    31,905.99x = 47,857.32 × 9,718.92
  4. Step 4: Simplify right side
    31,905.99x = 465,121,464.49
  5. Step 5: Solve for x
    x = 465,121,464.49/31,905.99
  6. Step 6: Final answer
    x = 14,577.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.