Home / 38,555.84-57,818.64-13,590.56

Finding the Fourth Proportional to 38,555.84, 57,818.64 and 13,590.56

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Solution

The fourth proportional to 38,555.84, 57,818.64 and 13,590.56 is: 20,380.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,555.84 : 57,818.64 = 13,590.56 : x
  2. Step 2: Convert to fraction form
    38,555.84/57,818.64 = 13,590.56/x
  3. Step 3: Cross multiply
    38,555.84x = 57,818.64 × 13,590.56
  4. Step 4: Simplify right side
    38,555.84x = 785,787,696.04
  5. Step 5: Solve for x
    x = 785,787,696.04/38,555.84
  6. Step 6: Final answer
    x = 20,380.51

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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.