Home / 21,509.45-32,258.77-7,655.21

Finding the Fourth Proportional to 21,509.45, 32,258.77 and 7,655.21

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Solution

The fourth proportional to 21,509.45, 32,258.77 and 7,655.21 is: 11,480.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,509.45 : 32,258.77 = 7,655.21 : x
  2. Step 2: Convert to fraction form
    21,509.45/32,258.77 = 7,655.21/x
  3. Step 3: Cross multiply
    21,509.45x = 32,258.77 × 7,655.21
  4. Step 4: Simplify right side
    21,509.45x = 246,947,658.69
  5. Step 5: Solve for x
    x = 246,947,658.69/21,509.45
  6. Step 6: Final answer
    x = 11,480.89

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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.