Home / 31,900.86-47,858.18-9,715.97

Finding the Fourth Proportional to 31,900.86, 47,858.18 and 9,715.97

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Solution

The fourth proportional to 31,900.86, 47,858.18 and 9,715.97 is: 14,576.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,900.86 : 47,858.18 = 9,715.97 : x
  2. Step 2: Convert to fraction form
    31,900.86/47,858.18 = 9,715.97/x
  3. Step 3: Cross multiply
    31,900.86x = 47,858.18 × 9,715.97
  4. Step 4: Simplify right side
    31,900.86x = 464,988,712.20
  5. Step 5: Solve for x
    x = 464,988,712.20/31,900.86
  6. Step 6: Final answer
    x = 14,576.06

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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.