Home / 47,988.77-71,952.32-19,928.18

Finding the Fourth Proportional to 47,988.77, 71,952.32 and 19,928.18

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Solution

The fourth proportional to 47,988.77, 71,952.32 and 19,928.18 is: 29,879.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,988.77 : 71,952.32 = 19,928.18 : x
  2. Step 2: Convert to fraction form
    47,988.77/71,952.32 = 19,928.18/x
  3. Step 3: Cross multiply
    47,988.77x = 71,952.32 × 19,928.18
  4. Step 4: Simplify right side
    47,988.77x = 1,433,879,014.08
  5. Step 5: Solve for x
    x = 1,433,879,014.08/47,988.77
  6. Step 6: Final answer
    x = 29,879.47

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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.