Home / 42,810.73-64,216.09-13,227.91

Finding the Fourth Proportional to 42,810.73, 64,216.09 and 13,227.91

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Solution

The fourth proportional to 42,810.73, 64,216.09 and 13,227.91 is: 19,841.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,810.73 : 64,216.09 = 13,227.91 : x
  2. Step 2: Convert to fraction form
    42,810.73/64,216.09 = 13,227.91/x
  3. Step 3: Cross multiply
    42,810.73x = 64,216.09 × 13,227.91
  4. Step 4: Simplify right side
    42,810.73x = 849,444,515.07
  5. Step 5: Solve for x
    x = 849,444,515.07/42,810.73
  6. Step 6: Final answer
    x = 19,841.86

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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.