Home / 30,132.84-45,203.72-10,406.12

Finding the Fourth Proportional to 30,132.84, 45,203.72 and 10,406.12

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Solution

The fourth proportional to 30,132.84, 45,203.72 and 10,406.12 is: 15,610.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,132.84 : 45,203.72 = 10,406.12 : x
  2. Step 2: Convert to fraction form
    30,132.84/45,203.72 = 10,406.12/x
  3. Step 3: Cross multiply
    30,132.84x = 45,203.72 × 10,406.12
  4. Step 4: Simplify right side
    30,132.84x = 470,395,334.77
  5. Step 5: Solve for x
    x = 470,395,334.77/30,132.84
  6. Step 6: Final answer
    x = 15,610.72

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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.