Home / 20,257.48-30,386.04-7,106.77

Finding the Fourth Proportional to 20,257.48, 30,386.04 and 7,106.77

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Solution

The fourth proportional to 20,257.48, 30,386.04 and 7,106.77 is: 10,660.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,257.48 : 30,386.04 = 7,106.77 : x
  2. Step 2: Convert to fraction form
    20,257.48/30,386.04 = 7,106.77/x
  3. Step 3: Cross multiply
    20,257.48x = 30,386.04 × 7,106.77
  4. Step 4: Simplify right side
    20,257.48x = 215,946,597.49
  5. Step 5: Solve for x
    x = 215,946,597.49/20,257.48
  6. Step 6: Final answer
    x = 10,660.09

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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.