Home / 30,116.34-45,152.59-12,591.14

Finding the Fourth Proportional to 30,116.34, 45,152.59 and 12,591.14

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Solution

The fourth proportional to 30,116.34, 45,152.59 and 12,591.14 is: 18,877.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,116.34 : 45,152.59 = 12,591.14 : x
  2. Step 2: Convert to fraction form
    30,116.34/45,152.59 = 12,591.14/x
  3. Step 3: Cross multiply
    30,116.34x = 45,152.59 × 12,591.14
  4. Step 4: Simplify right side
    30,116.34x = 568,522,582.05
  5. Step 5: Solve for x
    x = 568,522,582.05/30,116.34
  6. Step 6: Final answer
    x = 18,877.55

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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.