Home / 28,802.20-43,214.10-11,284.60

Finding the Fourth Proportional to 28,802.20, 43,214.10 and 11,284.60

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Solution

The fourth proportional to 28,802.20, 43,214.10 and 11,284.60 is: 16,931.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,802.20 : 43,214.10 = 11,284.60 : x
  2. Step 2: Convert to fraction form
    28,802.20/43,214.10 = 11,284.60/x
  3. Step 3: Cross multiply
    28,802.20x = 43,214.10 × 11,284.60
  4. Step 4: Simplify right side
    28,802.20x = 487,653,832.86
  5. Step 5: Solve for x
    x = 487,653,832.86/28,802.20
  6. Step 6: Final answer
    x = 16,931.13

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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.