Home / 31,964.35-47,946.46-8,590.79

Finding the Fourth Proportional to 31,964.35, 47,946.46 and 8,590.79

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Solution

The fourth proportional to 31,964.35, 47,946.46 and 8,590.79 is: 12,886.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,964.35 : 47,946.46 = 8,590.79 : x
  2. Step 2: Convert to fraction form
    31,964.35/47,946.46 = 8,590.79/x
  3. Step 3: Cross multiply
    31,964.35x = 47,946.46 × 8,590.79
  4. Step 4: Simplify right side
    31,964.35x = 411,897,969.10
  5. Step 5: Solve for x
    x = 411,897,969.10/31,964.35
  6. Step 6: Final answer
    x = 12,886.17

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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.