Home / 20,725.04-31,072.98-10,329.50

Finding the Fourth Proportional to 20,725.04, 31,072.98 and 10,329.50

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Solution

The fourth proportional to 20,725.04, 31,072.98 and 10,329.50 is: 15,486.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725.04 : 31,072.98 = 10,329.50 : x
  2. Step 2: Convert to fraction form
    20,725.04/31,072.98 = 10,329.50/x
  3. Step 3: Cross multiply
    20,725.04x = 31,072.98 × 10,329.50
  4. Step 4: Simplify right side
    20,725.04x = 320,968,346.91
  5. Step 5: Solve for x
    x = 320,968,346.91/20,725.04
  6. Step 6: Final answer
    x = 15,486.98

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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.