Home / 36,353.30-54,533.55-12,657.20

Finding the Fourth Proportional to 36,353.30, 54,533.55 and 12,657.20

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Solution

The fourth proportional to 36,353.30, 54,533.55 and 12,657.20 is: 18,987.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,353.30 : 54,533.55 = 12,657.20 : x
  2. Step 2: Convert to fraction form
    36,353.30/54,533.55 = 12,657.20/x
  3. Step 3: Cross multiply
    36,353.30x = 54,533.55 × 12,657.20
  4. Step 4: Simplify right side
    36,353.30x = 690,242,049.06
  5. Step 5: Solve for x
    x = 690,242,049.06/36,353.30
  6. Step 6: Final answer
    x = 18,987.05

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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.