Home / 20,630.04-30,947.94-10,239

Finding the Fourth Proportional to 20,630.04, 30,947.94 and 10,239

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Solution

The fourth proportional to 20,630.04, 30,947.94 and 10,239 is: 15,359.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,630.04 : 30,947.94 = 10,239 : x
  2. Step 2: Convert to fraction form
    20,630.04/30,947.94 = 10,239/x
  3. Step 3: Cross multiply
    20,630.04x = 30,947.94 × 10,239
  4. Step 4: Simplify right side
    20,630.04x = 316,875,957.66
  5. Step 5: Solve for x
    x = 316,875,957.66/20,630.04
  6. Step 6: Final answer
    x = 15,359.93

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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.