Home / 31,460.50-47,214.32-19,631.55

Finding the Fourth Proportional to 31,460.50, 47,214.32 and 19,631.55

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Solution

The fourth proportional to 31,460.50, 47,214.32 and 19,631.55 is: 29,462.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,460.50 : 47,214.32 = 19,631.55 : x
  2. Step 2: Convert to fraction form
    31,460.50/47,214.32 = 19,631.55/x
  3. Step 3: Cross multiply
    31,460.50x = 47,214.32 × 19,631.55
  4. Step 4: Simplify right side
    31,460.50x = 926,890,185.64
  5. Step 5: Solve for x
    x = 926,890,185.64/31,460.50
  6. Step 6: Final answer
    x = 29,462.03

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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.