Home / 31,996.84-47,989.80-8,617.81

Finding the Fourth Proportional to 31,996.84, 47,989.80 and 8,617.81

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Solution

The fourth proportional to 31,996.84, 47,989.80 and 8,617.81 is: 12,925.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,996.84 : 47,989.80 = 8,617.81 : x
  2. Step 2: Convert to fraction form
    31,996.84/47,989.80 = 8,617.81/x
  3. Step 3: Cross multiply
    31,996.84x = 47,989.80 × 8,617.81
  4. Step 4: Simplify right side
    31,996.84x = 413,566,978.34
  5. Step 5: Solve for x
    x = 413,566,978.34/31,996.84
  6. Step 6: Final answer
    x = 12,925.24

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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.