Home / 42,785.65-64,180.29-13,202.83

Finding the Fourth Proportional to 42,785.65, 64,180.29 and 13,202.83

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Solution

The fourth proportional to 42,785.65, 64,180.29 and 13,202.83 is: 19,804.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,785.65 : 64,180.29 = 13,202.83 : x
  2. Step 2: Convert to fraction form
    42,785.65/64,180.29 = 13,202.83/x
  3. Step 3: Cross multiply
    42,785.65x = 64,180.29 × 13,202.83
  4. Step 4: Simplify right side
    42,785.65x = 847,361,458.22
  5. Step 5: Solve for x
    x = 847,361,458.22/42,785.65
  6. Step 6: Final answer
    x = 19,804.81

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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.