Home / 34,731.20-47,929.01-18,815.72

Finding the Fourth Proportional to 34,731.20, 47,929.01 and 18,815.72

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Solution

The fourth proportional to 34,731.20, 47,929.01 and 18,815.72 is: 25,965.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,731.20 : 47,929.01 = 18,815.72 : x
  2. Step 2: Convert to fraction form
    34,731.20/47,929.01 = 18,815.72/x
  3. Step 3: Cross multiply
    34,731.20x = 47,929.01 × 18,815.72
  4. Step 4: Simplify right side
    34,731.20x = 901,818,498.31
  5. Step 5: Solve for x
    x = 901,818,498.31/34,731.20
  6. Step 6: Final answer
    x = 25,965.66

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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.