Home / 34,731.12-47,928.88-18,816

Finding the Fourth Proportional to 34,731.12, 47,928.88 and 18,816

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Solution

The fourth proportional to 34,731.12, 47,928.88 and 18,816 is: 25,966.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,731.12 : 47,928.88 = 18,816 : x
  2. Step 2: Convert to fraction form
    34,731.12/47,928.88 = 18,816/x
  3. Step 3: Cross multiply
    34,731.12x = 47,928.88 × 18,816
  4. Step 4: Simplify right side
    34,731.12x = 901,829,806.08
  5. Step 5: Solve for x
    x = 901,829,806.08/34,731.12
  6. Step 6: Final answer
    x = 25,966.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.