Home / 20,461.25-30,663.87-15,459.51

Finding the Fourth Proportional to 20,461.25, 30,663.87 and 15,459.51

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Solution

The fourth proportional to 20,461.25, 30,663.87 and 15,459.51 is: 23,168.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,461.25 : 30,663.87 = 15,459.51 : x
  2. Step 2: Convert to fraction form
    20,461.25/30,663.87 = 15,459.51/x
  3. Step 3: Cross multiply
    20,461.25x = 30,663.87 × 15,459.51
  4. Step 4: Simplify right side
    20,461.25x = 474,048,404.90
  5. Step 5: Solve for x
    x = 474,048,404.90/20,461.25
  6. Step 6: Final answer
    x = 23,168.11

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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.