Home / 20,384.95-30,580.47-7,236.22

Finding the Fourth Proportional to 20,384.95, 30,580.47 and 7,236.22

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Solution

The fourth proportional to 20,384.95, 30,580.47 and 7,236.22 is: 10,855.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,384.95 : 30,580.47 = 7,236.22 : x
  2. Step 2: Convert to fraction form
    20,384.95/30,580.47 = 7,236.22/x
  3. Step 3: Cross multiply
    20,384.95x = 30,580.47 × 7,236.22
  4. Step 4: Simplify right side
    20,384.95x = 221,287,008.62
  5. Step 5: Solve for x
    x = 221,287,008.62/20,384.95
  6. Step 6: Final answer
    x = 10,855.41

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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.