Home / 43,234.69-64,854.02-13,246.78

Finding the Fourth Proportional to 43,234.69, 64,854.02 and 13,246.78

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Solution

The fourth proportional to 43,234.69, 64,854.02 and 13,246.78 is: 19,870.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,234.69 : 64,854.02 = 13,246.78 : x
  2. Step 2: Convert to fraction form
    43,234.69/64,854.02 = 13,246.78/x
  3. Step 3: Cross multiply
    43,234.69x = 64,854.02 × 13,246.78
  4. Step 4: Simplify right side
    43,234.69x = 859,106,935.06
  5. Step 5: Solve for x
    x = 859,106,935.06/43,234.69
  6. Step 6: Final answer
    x = 19,870.78

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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.