Home / 31,848.84-47,742.12-17,815.68

Finding the Fourth Proportional to 31,848.84, 47,742.12 and 17,815.68

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Solution

The fourth proportional to 31,848.84, 47,742.12 and 17,815.68 is: 26,706.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,848.84 : 47,742.12 = 17,815.68 : x
  2. Step 2: Convert to fraction form
    31,848.84/47,742.12 = 17,815.68/x
  3. Step 3: Cross multiply
    31,848.84x = 47,742.12 × 17,815.68
  4. Step 4: Simplify right side
    31,848.84x = 850,558,332.44
  5. Step 5: Solve for x
    x = 850,558,332.44/31,848.84
  6. Step 6: Final answer
    x = 26,706.10

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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.