Home / 42,729.56-64,083.80-19,351.34

Finding the Fourth Proportional to 42,729.56, 64,083.80 and 19,351.34

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Solution

The fourth proportional to 42,729.56, 64,083.80 and 19,351.34 is: 29,022.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,729.56 : 64,083.80 = 19,351.34 : x
  2. Step 2: Convert to fraction form
    42,729.56/64,083.80 = 19,351.34/x
  3. Step 3: Cross multiply
    42,729.56x = 64,083.80 × 19,351.34
  4. Step 4: Simplify right side
    42,729.56x = 1,240,107,402.29
  5. Step 5: Solve for x
    x = 1,240,107,402.29/42,729.56
  6. Step 6: Final answer
    x = 29,022.24

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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.