Home / 42,940.56-64,410.84-13,360.26

Finding the Fourth Proportional to 42,940.56, 64,410.84 and 13,360.26

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Solution

The fourth proportional to 42,940.56, 64,410.84 and 13,360.26 is: 20,040.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,940.56 : 64,410.84 = 13,360.26 : x
  2. Step 2: Convert to fraction form
    42,940.56/64,410.84 = 13,360.26/x
  3. Step 3: Cross multiply
    42,940.56x = 64,410.84 × 13,360.26
  4. Step 4: Simplify right side
    42,940.56x = 860,545,569.22
  5. Step 5: Solve for x
    x = 860,545,569.22/42,940.56
  6. Step 6: Final answer
    x = 20,040.39

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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.