Home / 30,663.14-45,977.38-10,663.42

Finding the Fourth Proportional to 30,663.14, 45,977.38 and 10,663.42

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Solution

The fourth proportional to 30,663.14, 45,977.38 and 10,663.42 is: 15,989.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,663.14 : 45,977.38 = 10,663.42 : x
  2. Step 2: Convert to fraction form
    30,663.14/45,977.38 = 10,663.42/x
  3. Step 3: Cross multiply
    30,663.14x = 45,977.38 × 10,663.42
  4. Step 4: Simplify right side
    30,663.14x = 490,276,113.44
  5. Step 5: Solve for x
    x = 490,276,113.44/30,663.14
  6. Step 6: Final answer
    x = 15,989.10

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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.