Home / 34,731.98-47,930.20-18,816.56

Finding the Fourth Proportional to 34,731.98, 47,930.20 and 18,816.56

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Solution

The fourth proportional to 34,731.98, 47,930.20 and 18,816.56 is: 25,966.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,731.98 : 47,930.20 = 18,816.56 : x
  2. Step 2: Convert to fraction form
    34,731.98/47,930.20 = 18,816.56/x
  3. Step 3: Cross multiply
    34,731.98x = 47,930.20 × 18,816.56
  4. Step 4: Simplify right side
    34,731.98x = 901,881,484.11
  5. Step 5: Solve for x
    x = 901,881,484.11/34,731.98
  6. Step 6: Final answer
    x = 25,966.89

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1.5x scale

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.