Home / 31,828.49-47,730.19-11,560.45

Finding the Fourth Proportional to 31,828.49, 47,730.19 and 11,560.45

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Solution

The fourth proportional to 31,828.49, 47,730.19 and 11,560.45 is: 17,336.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,828.49 : 47,730.19 = 11,560.45 : x
  2. Step 2: Convert to fraction form
    31,828.49/47,730.19 = 11,560.45/x
  3. Step 3: Cross multiply
    31,828.49x = 47,730.19 × 11,560.45
  4. Step 4: Simplify right side
    31,828.49x = 551,782,271.17
  5. Step 5: Solve for x
    x = 551,782,271.17/31,828.49
  6. Step 6: Final answer
    x = 17,336.11

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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.