Home / 38,415.78-57,635.55-19,709.10

Finding the Fourth Proportional to 38,415.78, 57,635.55 and 19,709.10

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Solution

The fourth proportional to 38,415.78, 57,635.55 and 19,709.10 is: 29,569.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,415.78 : 57,635.55 = 19,709.10 : x
  2. Step 2: Convert to fraction form
    38,415.78/57,635.55 = 19,709.10/x
  3. Step 3: Cross multiply
    38,415.78x = 57,635.55 × 19,709.10
  4. Step 4: Simplify right side
    38,415.78x = 1,135,944,818.51
  5. Step 5: Solve for x
    x = 1,135,944,818.51/38,415.78
  6. Step 6: Final answer
    x = 29,569.74

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1.5x scale

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.