Home / 21,533.60-32,280.89-7,679.36

Finding the Fourth Proportional to 21,533.60, 32,280.89 and 7,679.36

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Solution

The fourth proportional to 21,533.60, 32,280.89 and 7,679.36 is: 11,512.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,533.60 : 32,280.89 = 7,679.36 : x
  2. Step 2: Convert to fraction form
    21,533.60/32,280.89 = 7,679.36/x
  3. Step 3: Cross multiply
    21,533.60x = 32,280.89 × 7,679.36
  4. Step 4: Simplify right side
    21,533.60x = 247,896,375.63
  5. Step 5: Solve for x
    x = 247,896,375.63/21,533.60
  6. Step 6: Final answer
    x = 11,512.08

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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.