Home / 30,154.60-45,231.90-28,874.80

Finding the Fourth Proportional to 30,154.60, 45,231.90 and 28,874.80

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Solution

The fourth proportional to 30,154.60, 45,231.90 and 28,874.80 is: 43,312.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,154.60 : 45,231.90 = 28,874.80 : x
  2. Step 2: Convert to fraction form
    30,154.60/45,231.90 = 28,874.80/x
  3. Step 3: Cross multiply
    30,154.60x = 45,231.90 × 28,874.80
  4. Step 4: Simplify right side
    30,154.60x = 1,306,062,066.12
  5. Step 5: Solve for x
    x = 1,306,062,066.12/30,154.60
  6. Step 6: Final answer
    x = 43,312.20

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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.