Home / 20,417.04-30,630.42-7,937.37

Finding the Fourth Proportional to 20,417.04, 30,630.42 and 7,937.37

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Solution

The fourth proportional to 20,417.04, 30,630.42 and 7,937.37 is: 11,907.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,417.04 : 30,630.42 = 7,937.37 : x
  2. Step 2: Convert to fraction form
    20,417.04/30,630.42 = 7,937.37/x
  3. Step 3: Cross multiply
    20,417.04x = 30,630.42 × 7,937.37
  4. Step 4: Simplify right side
    20,417.04x = 243,124,976.80
  5. Step 5: Solve for x
    x = 243,124,976.80/20,417.04
  6. Step 6: Final answer
    x = 11,907.94

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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.