Home / 30,280.80-45,421.20-23,712.60

Finding the Fourth Proportional to 30,280.80, 45,421.20 and 23,712.60

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Solution

The fourth proportional to 30,280.80, 45,421.20 and 23,712.60 is: 35,568.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,280.80 : 45,421.20 = 23,712.60 : x
  2. Step 2: Convert to fraction form
    30,280.80/45,421.20 = 23,712.60/x
  3. Step 3: Cross multiply
    30,280.80x = 45,421.20 × 23,712.60
  4. Step 4: Simplify right side
    30,280.80x = 1,077,054,747.12
  5. Step 5: Solve for x
    x = 1,077,054,747.12/30,280.80
  6. Step 6: Final answer
    x = 35,568.90

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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.