Home / 28,320.60-42,416.10-27,672.60

Finding the Fourth Proportional to 28,320.60, 42,416.10 and 27,672.60

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Solution

The fourth proportional to 28,320.60, 42,416.10 and 27,672.60 is: 41,445.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,320.60 : 42,416.10 = 27,672.60 : x
  2. Step 2: Convert to fraction form
    28,320.60/42,416.10 = 27,672.60/x
  3. Step 3: Cross multiply
    28,320.60x = 42,416.10 × 27,672.60
  4. Step 4: Simplify right side
    28,320.60x = 1,173,763,768.86
  5. Step 5: Solve for x
    x = 1,173,763,768.86/28,320.60
  6. Step 6: Final answer
    x = 41,445.58

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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.