Home / 31,499.10-47,253.66-10,439.89

Finding the Fourth Proportional to 31,499.10, 47,253.66 and 10,439.89

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Solution

The fourth proportional to 31,499.10, 47,253.66 and 10,439.89 is: 15,661.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,499.10 : 47,253.66 = 10,439.89 : x
  2. Step 2: Convert to fraction form
    31,499.10/47,253.66 = 10,439.89/x
  3. Step 3: Cross multiply
    31,499.10x = 47,253.66 × 10,439.89
  4. Step 4: Simplify right side
    31,499.10x = 493,322,933.51
  5. Step 5: Solve for x
    x = 493,322,933.51/31,499.10
  6. Step 6: Final answer
    x = 15,661.49

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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.