Home / 31,026-42,818.58-19,694.10

Finding the Fourth Proportional to 31,026, 42,818.58 and 19,694.10

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Solution

The fourth proportional to 31,026, 42,818.58 and 19,694.10 is: 27,179.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,026 : 42,818.58 = 19,694.10 : x
  2. Step 2: Convert to fraction form
    31,026/42,818.58 = 19,694.10/x
  3. Step 3: Cross multiply
    31,026x = 42,818.58 × 19,694.10
  4. Step 4: Simplify right side
    31,026x = 843,273,396.38
  5. Step 5: Solve for x
    x = 843,273,396.38/31,026
  6. Step 6: Final answer
    x = 27,179.57

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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.