Home / 39,617.06-54,671.96-21,711.67

Finding the Fourth Proportional to 39,617.06, 54,671.96 and 21,711.67

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Solution

The fourth proportional to 39,617.06, 54,671.96 and 21,711.67 is: 29,962.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,617.06 : 54,671.96 = 21,711.67 : x
  2. Step 2: Convert to fraction form
    39,617.06/54,671.96 = 21,711.67/x
  3. Step 3: Cross multiply
    39,617.06x = 54,671.96 × 21,711.67
  4. Step 4: Simplify right side
    39,617.06x = 1,187,019,308.53
  5. Step 5: Solve for x
    x = 1,187,019,308.53/39,617.06
  6. Step 6: Final answer
    x = 29,962.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.