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Finding the Fourth Proportional to 28,875.32, 43,305.32 and 11,345.30

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Solution

The fourth proportional to 28,875.32, 43,305.32 and 11,345.30 is: 17,014.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,875.32 : 43,305.32 = 11,345.30 : x
  2. Step 2: Convert to fraction form
    28,875.32/43,305.32 = 11,345.30/x
  3. Step 3: Cross multiply
    28,875.32x = 43,305.32 × 11,345.30
  4. Step 4: Simplify right side
    28,875.32x = 491,311,658.83
  5. Step 5: Solve for x
    x = 491,311,658.83/28,875.32
  6. Step 6: Final answer
    x = 17,014.94

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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.