Home / 28,703.89-43,054.63-9,988.17

Finding the Fourth Proportional to 28,703.89, 43,054.63 and 9,988.17

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Solution

The fourth proportional to 28,703.89, 43,054.63 and 9,988.17 is: 14,981.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,703.89 : 43,054.63 = 9,988.17 : x
  2. Step 2: Convert to fraction form
    28,703.89/43,054.63 = 9,988.17/x
  3. Step 3: Cross multiply
    28,703.89x = 43,054.63 × 9,988.17
  4. Step 4: Simplify right side
    28,703.89x = 430,036,963.73
  5. Step 5: Solve for x
    x = 430,036,963.73/28,703.89
  6. Step 6: Final answer
    x = 14,981.84

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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.