Home / 42,837.36-64,285.11-15,135.36

Finding the Fourth Proportional to 42,837.36, 64,285.11 and 15,135.36

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Solution

The fourth proportional to 42,837.36, 64,285.11 and 15,135.36 is: 22,713.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,837.36 : 64,285.11 = 15,135.36 : x
  2. Step 2: Convert to fraction form
    42,837.36/64,285.11 = 15,135.36/x
  3. Step 3: Cross multiply
    42,837.36x = 64,285.11 × 15,135.36
  4. Step 4: Simplify right side
    42,837.36x = 972,978,282.49
  5. Step 5: Solve for x
    x = 972,978,282.49/42,837.36
  6. Step 6: Final answer
    x = 22,713.31

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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.