Home / 28,717.48-43,055.40-8,985.32

Finding the Fourth Proportional to 28,717.48, 43,055.40 and 8,985.32

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Solution

The fourth proportional to 28,717.48, 43,055.40 and 8,985.32 is: 13,471.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,717.48 : 43,055.40 = 8,985.32 : x
  2. Step 2: Convert to fraction form
    28,717.48/43,055.40 = 8,985.32/x
  3. Step 3: Cross multiply
    28,717.48x = 43,055.40 × 8,985.32
  4. Step 4: Simplify right side
    28,717.48x = 386,866,546.73
  5. Step 5: Solve for x
    x = 386,866,546.73/28,717.48
  6. Step 6: Final answer
    x = 13,471.47

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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.