Home / 28,703.02-43,054.50-7,643.08

Finding the Fourth Proportional to 28,703.02, 43,054.50 and 7,643.08

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Solution

The fourth proportional to 28,703.02, 43,054.50 and 7,643.08 is: 11,464.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,703.02 : 43,054.50 = 7,643.08 : x
  2. Step 2: Convert to fraction form
    28,703.02/43,054.50 = 7,643.08/x
  3. Step 3: Cross multiply
    28,703.02x = 43,054.50 × 7,643.08
  4. Step 4: Simplify right side
    28,703.02x = 329,068,987.86
  5. Step 5: Solve for x
    x = 329,068,987.86/28,703.02
  6. Step 6: Final answer
    x = 11,464.61

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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.