Home / 20,069.32-30,123.42-9,688.36

Finding the Fourth Proportional to 20,069.32, 30,123.42 and 9,688.36

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Solution

The fourth proportional to 20,069.32, 30,123.42 and 9,688.36 is: 14,541.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,069.32 : 30,123.42 = 9,688.36 : x
  2. Step 2: Convert to fraction form
    20,069.32/30,123.42 = 9,688.36/x
  3. Step 3: Cross multiply
    20,069.32x = 30,123.42 × 9,688.36
  4. Step 4: Simplify right side
    20,069.32x = 291,846,537.39
  5. Step 5: Solve for x
    x = 291,846,537.39/20,069.32
  6. Step 6: Final answer
    x = 14,541.92

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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.