Home / 20,200.04-30,302.17-7,719.98

Finding the Fourth Proportional to 20,200.04, 30,302.17 and 7,719.98

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Solution

The fourth proportional to 20,200.04, 30,302.17 and 7,719.98 is: 11,580.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,200.04 : 30,302.17 = 7,719.98 : x
  2. Step 2: Convert to fraction form
    20,200.04/30,302.17 = 7,719.98/x
  3. Step 3: Cross multiply
    20,200.04x = 30,302.17 × 7,719.98
  4. Step 4: Simplify right side
    20,200.04x = 233,931,975.55
  5. Step 5: Solve for x
    x = 233,931,975.55/20,200.04
  6. Step 6: Final answer
    x = 11,580.77

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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.