Home / 42,764.64-64,138.32-11,592.48

Finding the Fourth Proportional to 42,764.64, 64,138.32 and 11,592.48

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Solution

The fourth proportional to 42,764.64, 64,138.32 and 11,592.48 is: 17,386.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,764.64 : 64,138.32 = 11,592.48 : x
  2. Step 2: Convert to fraction form
    42,764.64/64,138.32 = 11,592.48/x
  3. Step 3: Cross multiply
    42,764.64x = 64,138.32 × 11,592.48
  4. Step 4: Simplify right side
    42,764.64x = 743,522,191.83
  5. Step 5: Solve for x
    x = 743,522,191.83/42,764.64
  6. Step 6: Final answer
    x = 17,386.38

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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.