Home / 42,936.06-64,404.09-13,355.76

Finding the Fourth Proportional to 42,936.06, 64,404.09 and 13,355.76

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Solution

The fourth proportional to 42,936.06, 64,404.09 and 13,355.76 is: 20,033.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,936.06 : 64,404.09 = 13,355.76 : x
  2. Step 2: Convert to fraction form
    42,936.06/64,404.09 = 13,355.76/x
  3. Step 3: Cross multiply
    42,936.06x = 64,404.09 × 13,355.76
  4. Step 4: Simplify right side
    42,936.06x = 860,165,569.06
  5. Step 5: Solve for x
    x = 860,165,569.06/42,936.06
  6. Step 6: Final answer
    x = 20,033.64

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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.