Home / 28,351.96-42,478.63-19,900.52

Finding the Fourth Proportional to 28,351.96, 42,478.63 and 19,900.52

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Solution

The fourth proportional to 28,351.96, 42,478.63 and 19,900.52 is: 29,816.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,351.96 : 42,478.63 = 19,900.52 : x
  2. Step 2: Convert to fraction form
    28,351.96/42,478.63 = 19,900.52/x
  3. Step 3: Cross multiply
    28,351.96x = 42,478.63 × 19,900.52
  4. Step 4: Simplify right side
    28,351.96x = 845,346,723.04
  5. Step 5: Solve for x
    x = 845,346,723.04/28,351.96
  6. Step 6: Final answer
    x = 29,816.17

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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.