Home / 27,533.60-41,300.40-7,812.80

Finding the Fourth Proportional to 27,533.60, 41,300.40 and 7,812.80

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Solution

The fourth proportional to 27,533.60, 41,300.40 and 7,812.80 is: 11,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,533.60 : 41,300.40 = 7,812.80 : x
  2. Step 2: Convert to fraction form
    27,533.60/41,300.40 = 7,812.80/x
  3. Step 3: Cross multiply
    27,533.60x = 41,300.40 × 7,812.80
  4. Step 4: Simplify right side
    27,533.60x = 322,671,765.12
  5. Step 5: Solve for x
    x = 322,671,765.12/27,533.60
  6. Step 6: Final answer
    x = 11,719.20

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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.