Home / 20,388.56-30,547.42-11,035.02

Finding the Fourth Proportional to 20,388.56, 30,547.42 and 11,035.02

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Solution

The fourth proportional to 20,388.56, 30,547.42 and 11,035.02 is: 16,533.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,388.56 : 30,547.42 = 11,035.02 : x
  2. Step 2: Convert to fraction form
    20,388.56/30,547.42 = 11,035.02/x
  3. Step 3: Cross multiply
    20,388.56x = 30,547.42 × 11,035.02
  4. Step 4: Simplify right side
    20,388.56x = 337,091,390.65
  5. Step 5: Solve for x
    x = 337,091,390.65/20,388.56
  6. Step 6: Final answer
    x = 16,533.36

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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.