Home / 20,125.51-30,178.64-7,466.57

Finding the Fourth Proportional to 20,125.51, 30,178.64 and 7,466.57

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Solution

The fourth proportional to 20,125.51, 30,178.64 and 7,466.57 is: 11,196.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,125.51 : 30,178.64 = 7,466.57 : x
  2. Step 2: Convert to fraction form
    20,125.51/30,178.64 = 7,466.57/x
  3. Step 3: Cross multiply
    20,125.51x = 30,178.64 × 7,466.57
  4. Step 4: Simplify right side
    20,125.51x = 225,330,966.18
  5. Step 5: Solve for x
    x = 225,330,966.18/20,125.51
  6. Step 6: Final answer
    x = 11,196.29

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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.