Home / 31,953.63-47,930.75-8,580.07

Finding the Fourth Proportional to 31,953.63, 47,930.75 and 8,580.07

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Solution

The fourth proportional to 31,953.63, 47,930.75 and 8,580.07 is: 12,870.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,953.63 : 47,930.75 = 8,580.07 : x
  2. Step 2: Convert to fraction form
    31,953.63/47,930.75 = 8,580.07/x
  3. Step 3: Cross multiply
    31,953.63x = 47,930.75 × 8,580.07
  4. Step 4: Simplify right side
    31,953.63x = 411,249,190.15
  5. Step 5: Solve for x
    x = 411,249,190.15/31,953.63
  6. Step 6: Final answer
    x = 12,870.19

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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.