Home / 30,312.02-41,832.69-18,375.86

Finding the Fourth Proportional to 30,312.02, 41,832.69 and 18,375.86

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Solution

The fourth proportional to 30,312.02, 41,832.69 and 18,375.86 is: 25,359.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,312.02 : 41,832.69 = 18,375.86 : x
  2. Step 2: Convert to fraction form
    30,312.02/41,832.69 = 18,375.86/x
  3. Step 3: Cross multiply
    30,312.02x = 41,832.69 × 18,375.86
  4. Step 4: Simplify right side
    30,312.02x = 768,711,654.86
  5. Step 5: Solve for x
    x = 768,711,654.86/30,312.02
  6. Step 6: Final answer
    x = 25,359.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.